1

Г О Д И Ш Н И КНА

СОФИЙСКИЯ УНИВЕРСИТЕТ

„СВ. КЛИМЕНТ ОХРИДСКИ“

ХИМИчЕСКИ ФАКУЛТЕТ

Том 104/105, 2013

_____________

A N N U A I R E DE

L’UNIVERSITÉ DE SOFIA

„ST. KLIMENT OHRIDSKI“

FACULTÉ DE CHIMIE

Tome 104/105, 2013

СОФИЯ • 2013 • SOFIA

УНИВЕРСИТЕТСКО ИЗДАТЕЛСТВО „СВ. КЛИМЕНТ ОХРИДСКИ“

PRESSES UNIVERSITAIRE „ST. KLIMENT OHRIDSKI“

2

© St. Kliment Ohridski University of Sofia Faculty of Chemistry 2013

ISSN 0584-0317

3

ГОДИШНИК НА СОФИЙСКИЯ УНИВЕРСИТЕТ „СВ. КЛИМЕНТ ОХРИДСКИ“ ХИМИчЕСКИ ФАКУЛТЕТ

ANNUAIRE DE L’UNIVERSITÉ DE SOFIA „ST. KLIMENT OHRIDSKI“FACULTÉ DE CHIMIE

Editor-in-ChiefProf. M. Miteva, D.Sc., Ph.D.Department of Analytical Chemistry

Faculty of Chemistry, University of Sofia, 1 J. Bourchier Blvd., 1164 Sofia, BULGARIAE-mail: Mmitewa@chem.uni-sofia.bg

Edited by Sophia ToudjarovaFaculty of Chemistry, University of Sofia, 1 J. Bourchier Blvd., 1164 Sofia, BULGARIA

E-mail: s_toudjarova@chem.uni-sofia.bg

Editorial Board

Assoc. Prof. Dr. D. Todorovsky, Ph.D. Prof. B. V. Toshev, D.Sc., Ph.D. Department of Inorganic Chemistry Department of Physical Chemistry University of Sofia University of Sofia Todorovsky@chem.uni-sofia-bg Toshev@chem.uni-sofia.bg Prof. B. Galabov, D.Sc., Ph.D. Assoc. Prof. T. Spassov, D.Sc., Ph.D. Department of Applied Organic Chemical Department of Applied Inorganic Chemical University of Sofia University of Sofia Galabov@chem.uni-sofia.bg Tspassov@chem.uni-sofa.bg

Prof. G. Petrov, D.Sc., Ph.D.Department of Organic Chemistry, University of Sofia

GPetrov@chem.uni-sofia.bg

AIMS AND SCOPE

Annuaire de l’Université de Sofia ,,St. Kliment Ohridski“. Faculté de chimie (Ann. Univ. Sofia. Fac. Chimie, formerly: Ann. Univ. Sofia. Fac. Phys.-Math.) is the first Bulgar ian journal publishing research papers in the field of chemistry. The aim of the Journal is to encourage the submission of original, well-documented articles on all branches of chem istry. Areas covered include inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry, and chemical technology.

The Journal publishes review papers from invited authors of international stature. The Sofia University lecturers could also present such reviews but prior to submitting a manuscript, please send an outline and table of contents of the proposed review. Our rubric Literary heritage contains research papers and documents on the history of chemical education and scientific achievements at the University of Sofia. Lists of publications of our eminent professors, nowadays and in the past, are welcome.

The journal will also publish Book reviews.

4

ORDER FORM

Please complete this formand send it to your usualsupplier or to:

Prof. Dr. M. Mitewa, DSc Department of ChemistryUniversity of Sofia1, James Bourchier Blvd.1164 Sofia, Bulgaria

Bank AccountBNBIBANBG 19BNBG96613100174701BIC BNBGBGSD

БНБ – ЦУ СметкаIBAN BG 19BNBG96613100174701BIC BNBGBGSD

Годишен абонамент за 2013 година:

1. За български институции, библиотеки и фирми 25 US$

2. За български граждани 10 US$

Subscription information 2013

Volume 104/105 is scheduled for publication.

Subscription price: US$ 100 (Europe), US$ 110 (all other countries).

Advertisements and announcements are accepted and published in the journal at USD 3 per 1 cm2.

ANNUAIRE DE L’UNIVERSITÉ DE SOFIA „ST. KLIMENT OHRIDSKI“ FACULTÉ DE CHIMIE

Please send a Free Sample Copy.Please note my annual subscription to ANNUAIRE DE L’UNFVERSITÉ DE SOFIA „ST. KLIMENT OHRIDSKI“ FACULTÉ DE CHIMIE(ISSN 0584-0317)Vol. 104/105 – US$ 100 (Europe), US$ 110 (all other countries), including postage and handlingPlease bill me (postage and handling charges will be added)Cheque enclosed (no postage and handling charges)

Name ....................................................................................Institute/Company .................................................................Street .....................................................................................City ........................................................................................Country………………..........Zip ..........................................Signature……………………Date ........................................

5

CONTENTS

1. Literary heritage. Bibliography of Professor D.Sc. Ivelin Kuleff (dedicated to the 70th anniversary of Prof. Ivelin Veselinov Kuleff) ............................................................. 9

2. Literary heritage. Scientific publications of Professor D.Sc. N. Tyutyulkov: 1993–2012 .......................................................................................................................... 27

3. In Memoriam: Assoc. Prof. Donka Christova Nonova ............................................. 35

4. I. Kamenova, E. Kamenska, G. Georgiev. Salt effect on the radical copolymerization of 3-dimethyl(methacryloyloxyethyl)ammonium propane sulfonate with N-vinyl-2-pyrrolidone in water .................................................................................................. 39

5. T. Yu. Stoilkova. Immobilization of optically active rhodium complex on MCM-41. Part I – Preparation of the heterogeneous catalytic system ...................................... 51

6. T. Yu. Stoilkova. Immobilization of optically active rhodium complex on MCM-41 for hydrogenation of α-(acetylamino)cinnamic acid. Part II - enantioselective catalytic hydrogenation ........................................................................................................... 57

7. N. Tyutyulkov, F. Dietz. A new class of polyconjugated π-system with degenerate states ......................................................................................................................... 63

8. S. Iliev, V. Toncheva, G. Georgiev. Spin polarization effect on the 2-hydroxyethyl methacrylate atom transfer radical polymerization in methyl alcohol ..................... 71

9. S. Iliev, V. Toncheva, G. Georgiev. Effects of the magnetic field and visible light on the initiated by 10-I-3 iodanes alternating maleic anhydride copolymerization with vinyl ester of 2,2,4- trimethylheptane acid ........................................................................ 81

10. N. G. Ivanova, R. Tsekov. Comparison of thermal fluctuations in foam films and bilayer structures ................................................................................................................... 93

11. St. B. Iliev, G. S. Georgiev. Inversion of the magnetic field effect on the radical methyl methacrylate homopolymerization in bulk at a transition from a constant to pulsatile magnetic field .......................................................................................................... 109

12. P. I. Bozov. Antifeedant activity of stem extracts from species of genus Scutellaria L. against Colorado potato beetle larvae .................................................................... 125

6

7

СъДъРжАНИЕ

1. Литературно наследство. Библиография на проф. дхн Ивелин Кулев (посвещава се на 70-годишния юбилей на проф. Ивелин Веселинов Кулев). ......................... 9

2. Литературно наследство. Научни публикации на проф. дхн Николай Тютюлков: 1993-2012 ................................................................................................................. 27

3. В памет на проф. Донка Христова Нонова .......................................................... 35

4. И. Каменова, Е. Каменска, Г. Георгиев. Солеви ефект върху радикаловата полимеризация на 3-диметил(метакрилоилоксиетил)амониев пропансулфонат с N-винил-2-пиролидон във вода ............................................................................. 39

5. Т. Ю. Стоилкова. Свързване на оптично активен родиев комплекс с МСМ-41. част I – Създаване на хетерогенна каталитична система .................................... 51

6. Т. Ю. Стоилкова. Свързване на оптично активен родиев комплекс с МСМ-41 за хидрогениране на α-(ацетиламино) канелена киселина. част II. Енантиоселективно каталитично хидрогениране. .................................................................................. 57

7. Н. Тютюлков, Ф. Дитц. Една нова класа поликонюгирани π-системи с изродени състояния. ................................................................................................................ 63

8. С. Илиев, В. Тончева, Г. Георгиев. Ефект на спиновата поляризация върху радикаловата полимеризация с атомен пренос на 2- хидроксиетилметакрилат в метилов алкохол. ..................................................................................................... 71

9. С. Илиев, В. Тончева, Г. Георгиев. Ефекти на магнитно поле и на видима светлина върху инициирана с 10-I-3 йодани алтернираща радикалова съполимеризация на малеинов анхидрид с винилов естер на 2,2,4-триметилхептанова киселина. ... 81

10. Н. Иванова, Р. Цеков. Сравнение на термични флуктоации в пенни филми и двуслойни структури . ............................................................................................ 93

11. С. Илиев, Г. Георгиев. Инверсия на ефекта на магнитното поле върху радикаловата полимеризация на метилметакрилата в блок при преход от постоянно към пулсиращо магнитно поле. ................................................................................... 109

12. П. И. Бозов. Антифидантна активност на екстракти от растителни видове на Scutellaria L. срещу ларви на колорадски бръмбар. .......................................... 125

8

9

ГОДИШНИК НА СОФИЙСКИЯ УНИВЕРСИТЕТ „СВ. КЛИМЕНТ ОХРИДСКИ“

ХИМИчЕСКИ ФАКУЛТЕТ

Том 104/105, 2013

ANNUAIRE DE L’UNIVERSITÉ DE SOFIA „ST. KLIMENT OHRIDSKI“

FACULTÉ DE CHIMIE

Tome 104/105, 2013

LITERARY HERITAGE

BIBLIOGRAPHY OF PROFESSOR D.Sc. IVELIN KULEFF

DeDicateD to the 70th anniversary of Prof. Ivelin Veselinov Kuleff

Ivelin Veselinov Kuleff was born on July 5th, 1942 in Shumen. He is a graduate of the Faculty of Chemistry, “St. Kliment Ohridski” University of Sofia (1967). From the same year he has worked as a radiochemist at the Chair of General and Inorganic Chemistry. Later on Mr. Ivelin Kuleff successfully competed for the positions of Assistant Professor of Radiochemistry (1969), Senior Assistant (1973) and Chief Assistant (1979). In 1980 he defended a Ph.D. thesis in the field of radiochemistry (scien-tific consultant Prof. K. Kostadinov). During that early period of his career Dr. Kuleff lectured on “Radiometry” (1972–1979) and spent 17 months at the Technical University in Munich, Germany, on hot atoms chemistry (1971–1972) as a scholar of the International Atomic Agency (IAEA, Vienna).

In 1984 Dr. I. Kuleff moved to the Department of Analytical Chemistry and established there a “Laboratory of Radioanalytical Chemistry” (1984–2011), headed by him until his retirement in 2011. He has become Senior Research Associate on Analytical Chemistry (Radioanalytical Chemistry) (1989), Associate Professor of Analytical Chemistry (1996), and Full Professor of Analytical Chemistry (Radioanalytical Chemistry) (2002–2011). Dr. Kuleff defended a D.Sc. thesis on archaeometric studies by neutron activation analysis (NAA) in 1998.

Professor Kuleff has lectured in numerous cources on “Radiochemistry”, “Radio-analyt ical Chemistry”, “Radiometry and Radiometric Analysis”, “Nuclear Chemistry and

10

Radio chemistry”, “Reactor Chemistry”, “Environmental Chemisytry”, “Radioecology”, Instru mental Method of Analysis”, “Archaeometry”, “X-ray and Nuclear Methods of Analysis”, etc. at the University of Sofia (1972–2011), South-West University in Blagoev-grad (1989–1999), Higher Military School in Veliko Tarnovo (1974–1984), as well as been a guest professor at European universities: University “La Sapienza”, Rome (1992), Technische Hochschule-Bergakademie, Freiberg (1999–2001), University of Frankfurt (2004). He has established fruitful cooperation with scientists from Germany, Greece and Italy. Professor Kuleff also founded the master programme on “Archaeometry” (co-programme with the Faculty of History).

Prof. Kuleff has served as a Deputy Dean of the Faculty of Chemistry (2001–2004), a member of the Specialized Scientific Council on Inorganic and Analytical Chemistry (1997–2004), and a member (2004–2006) and Chairman (2007–2009) of the Commission on Chemical Sciences at the Supreme Attestation Commission at the Council of Ministers in the Republic of Bulgaria. Professor Kuleff is a member of the Union of Chemists in Bulgaria, Gesellschaft für Naturwissenschaftliche Archaeometrie (Germany), Bulgarian Society for the Chemistry Education and History and Philosophy of Chemistry (CE&HPC), and Fellow at the IUPAC, Inorganic Chemistry Division, Commission on Isotopic Abundances and Atomic Weights.

The scientific research of Professor Kuleff has been mailly in the field of analytical chemistry, radiochemistry, archaeometry and ecochemistry, with an emphasis on neutron activation analysis, gamma spectrometry, radiometry, X-ray fluorescence, sampling and chemomeric treatment of experimental data from multielement analytical techniques.

Complete bibliography of Professor Ivelin Kuleff, including 2 theses, 14 books/text-books and book chapters and over 160 journal and conference papers has been compiled and given in chronological order below (in this issue). Titles of publications are given in their original language of publication and those published in Cyrillic (Bulgarian, Russian) are also translated in English.

theses

1. Кулев, И. В. Неутронноактивационно определяне на съдържанието на уран в скали, минерали и природни води. Дисертация за научната степен “Кандидат на химическите науки” по 01.05.12 “Радиохимия”, Химически факултет, Софийски университет “Св. Климент Охридски”, С., 1980, 231 с.

Kuleff, I. Neutron Activation Determination of the Content of Uranium in Rocks, Minerals, and Natural Waters. PhD Thesis, Faculty of Chemistry, University of Sofia“St. Kliment Ohridski”, 1980, pp. 231 (in Bulg.).

2. Кулев, И. Археометрични изследвания с помощта на НАА. Дисертация за научната степен “Доктор на химическите науки”, Химически факултет, Софийски университет “Св. Климент Охридски”, 1998, pp. 250.

Kuleff, I. Archaeometric Investigations Using Neutron Activation Analysis. DSc Thesis, Faculty of Chemistry, University of Sofia “St. Kliment Ohridski”, Sofia, 1998, pp. 250 (in Bulg.).

11

Books

3. Кулев, И., Р. Златанова, П. Константинов, М. Димитров, Г. Генчев, П. Пеев. Колко опасни за на-селението са течните радиоактивни изхвърляния от АЕЦ Козлодуй?, БалБок, С., 1994, 111 с. Kuleff, I. R. Zlatanova, P. Konstantinov, M. Dimitrov, G. Genchev, P. Peev. How Dangerous for the Population are the Liquid Radioactive Releases from NPP Kozloduy, BalBok, Sofia, 1994, pp. 111 (in Bulg.).

4. Бончев, П., И. Кулев, М. Митева. Катедра по Аналитична химия, 1924–1994 г. Библиография, Унив. изд. Св. Кл. Охридски, С., 1994, 132 с., ISBN 954-07-0550-9.

Bontchev, P., I. Kuleff, M. Miteva. Department of Analytical Chemistry, 1924–1994, Bibliography, St. Kl. Ohridski University Press, Sofia, 1994, pp. 132, ISBN 954-07-0550-9. (in Bulg. and English).

5. Бончев, П., И. Кулев, Р. Джингова. 75 години Катедра по аналитична химия Библиография, 1994–1999 г., Унив. изд. “Св. Кл. Охридски”, С., 1999, 32 с., ISBN 954-07-1347-1.

Bonchev, P., I. Kuleff, R. Djingova. 75th Anniversary of the Department of Analytical Chemistry 1924–1999. Bibliography, 1994–1999, St. Kl. Ohridski University Press, Sofia, 1999, pp. 32 (in Bulg. and English).

6. Попов, Л., И. Кулев. Техногенни радионуклиди в околната среда. Произход, методи за изолиране и определяне, Сиела, С., 2008, 351 с., ISBN 978-954-28-0246-4.

Popov, L., I. Kuleff. Technogenic Radionuclides in the Environment. Origin, Methods for Isolation and Determination, Ciela, Sofia, 2008, pp. 315, ISBN 978-954-28-0246-4 (in Bulg.).

7. Кулев, И. Археометрия, Унив. изд. “Св. Кл. Охридски”, С., 2012, 839 с., ISBN 978-954-07-2914-5. Kuleff, I. Archaeometry, St. Kl. Ohridski University Press, Sofia, 2012, pp. 839, ISBN 978-954-07-2914-5 (in Bulg.).

Book chaPters

8. Kuleff, I., R. Djingova. Activation Analysis in Archaeology. In: Activation Analysis, Alfassi, Z., (Ed.), CRC Press, Inc., Boca Raton, Florida, 1990, vol. 2, pp. 427–489.

9. Djingova, R., I. Kuleff. On the Sampling of Vascular Plants for Monitoring of Heavy Metal Pollution. In: Environmental Sampling for Trace Analysis, Markert, B. (Ed.), VCH, Weinheim, 1994, 2007, pp. 395–414, ISBN 9783527300518.

10. Кулев, И. Замърсяване на околната среда, В: Сб. България 20 век, Изд. “Труд”, С., 1999, с. 492–519, ISBN 954-528-146-4.

Kuleff, I. Environmental Pollution, In: Collection “Bulgaria 20th century”, Izd. “Trud”, Sofia, 1999, pp. 492–519, ISBN 954-528-146-4 (in Bulg.).

11. Djingova, R., I. Kuleff. Instrumental Techniques for Trace Analysis. In: Trace Elements in the Environment, Markert, B., K. Friese (Eds.), Elsevier Science, Amsterdam, 2000, pp. 137–185, ISBN 0-444-50532-6.

12. Kuleff, I., R. Djingova. Mass Spectrometry. In: Analytical Archaeometry. Selected Topics, Edwards, H. G. M., Vandenabeele, P. (Eds.), The Royal Society of Chemistry, Cambridge, 2012, pp. 165–211. ISBN 978-1-84973-162-1.

textBooks

13. желязкова, Б., С. Ганева, И. Кулев, Л. Шишкова, Г. Пеков, М. Митева, Б. Евтимова. Сборник с решени задачи по инструментални методи за анализ, Университетско издателство “Св.

12

Кл. Охридски”, С., 2007, pp. 183–221, ISBN-10: 954-07-2330-2; ISBN-13: 978-954-07-2330-3. Zhelyazkova, B., S. Ganeva, I. Kuleff, L. Shishkova, G. Pekov, M. Miteva, B. Eftimova. Collection of Solved Problems on Instrumental Methods of Analysis, St. Kl. Ohridski University Press, Sofia, 2007, pp. 183–221, ISBN-10: 954-07-2330-2; ISBN-13: 978-954-07-2330-3 (in Bulg.).

14. Кулев, И. Добра лабораторна практика, В: Основи на химичния анализ, съставител и редактор Р. Борисова, изд. “Водолей”, С., 2009, с. 44–51, ISBN 978-954-9415-43-5. Kuleff, I. Good Laboratory Practice, In: Basics of Chemical Analysis, Borissova, R. (Compiler and Editor), “Vodoley”, Sofia, 2009, pp. 41–51, ISBN 978-954-9415-43-5 (in Bulg.).

15. Кулев, И. Рентгенофлуоресцентен анализ, В: Основи на химичния анализ, съставител и редактор Р. Борисова, изд. “Водолей”, С., 2009, с. 256–270, ISBN 978-954-9415-43-5. Kuleff, I. X-Ray Fluorescence Analysis, In: Basics of Chemical Analysis, Borissova, R. (Compiler and Editor), “Vodoley”, Sofia, 2009, pp. 256–270, ISBN 978-954-9415-43-5 (in Bulg.).

16. Кулев, И. Неутронноактивационен анализ. В: Основи на химичния анализ, съставител и редактор Р. Борисова, изд. “Водолей”, С., 2009, с. 343–359, ISBN 978-954-9415-43-5. Kuleff, I. Neutron Activation Analysis, In: Basics of Chemical Analysis, Borissova, R. (Compiler and Editor), “Vodoley”, Sofia, 2009, pp. 343–359, ISBN 978-954-9415-43-5 (in Bulg.).

scientific PaPers

17. Николов, К., И. Кулев. Содержание фтора-18 в охлаждающей воде исследовательских реакторов. Атомная энергия, 25, 1968, 184–187.

Nikolov, K., I. Kuleff. Contents of Fluorine-18 in Cooling Water of Research Reactors, Atomic Energy, 25, 1968, 184–187 (in Russian).

18. Nikolov, K., I. Kuleff. Über das Gehalt von Fluorine-18 im Kühlwasser der Forschungsreaktoren. Ann. Univ. Sofia, Fac. Chim., 61, 1966/1967, 107–117 (in Russian).

19. Kuleff, I., D. Todorovsky. On the Non-Destructive Neutron Activation Determination of Uranium by the 106 KeV-Gamma-Peak of Neptunium-239. I. The Effect of Th, Ta, Pt, Ru, Zn and Ba. Fresenius Z. Anal.Chem., 257, 1971, 23–28.

20. Kuleff, I., D. Todorovsky. Eine Methode zur Bestimmung des Spaltradiojodgehalts im Kühlwasser von Kernreaktoren. Kernenergie, 15, 1972, 381–383.

21. Йовчев, М., Д. Тодоровски, И. Кулев, М. Николова. Относно скоростта на корозия на сто-мана 20К, определена по радиоизотопен метод при условията на водородна деполяризация и без принудително движение на агресивната среда. Научни трудове по топлотехника, т. 2, 1972, 321–331.

Iovchev, M., D. Todorovsky, I. Kuleff, M. Nikolova. About the Velocity of Corrosion of Steel 20K, Determined with Radioisotope Method by Condition of Hydrogen Depolarization and without Compulsory Movement of the Aggressive Fluid, Wissenschaftliche Arbeiten in dem Gebite der Wärmetechnik der Technischen Hochschulen, vol. 2, 1972, 321–331 (in Bulg.).

22 Костадинов, К., И. Кулев. Върху методите за изолиране на флуор-18 от охлаждащата вода на ядрените реактори. Ann. Univ. Sofia, Fac. Chim., 67, 1972/73, 185–197.

Kostadinov, K., I. Kuleff. On the Methods of Separation of Fluorine-18 in Reactor Cooling Water. Ann. Univ. Sofia, Fac. Chim., 67, 1972/1973, 185–197 (in Bulg.).

23. Kuleff, I., D. Todorovsky. On the Non-Destructive Neutron Activation Determination of Uranium by the 106 KeV-Gamma-Peak of Neptunium-239. II. Effect of Rare Earth. Fresenius Z. Anal. Chem., 266, 1973, 23–28.

24. Kuleff, I., D.Todorovsky. Neutron Activation Determination of Uranium by Coprecipitation of Neptunium-239 on Zirconium Phosphate. J. Radioanal.Chem., 21, 1974, 445–451.

13

25. Янев, Я., И. Кулев, К. Костадинов. Осадочный метод выделения радиоизотопов циркония из теплоносителя и проблемы контроля герметичности оболочек твэлов на АЭС. Ann. Univ. Sofia, Fac. Chim., 69, 1974/75, 139–147.

Yanev, Y., I. Kuleff, K. Kostadinov. A coprecipitation method for radiochemical separation of zirconium isotopes present in the primary coolant of water-water power reactors. Ann. Univ. Sofia, Fac. Chim., 69, 1974/1975, 139–147 (in Russian).

26. Кулев, И., К. Костадинов, Я.Янев. Метод определения теллура-132 в теплоносителе первого контура энергетических реакторов. В: Сб. докл. ІІІ-его симпозиума стран-членов СЭВ “Водный режим, водоподготовка и проблемы контроля герметичности оболочек твэлов на АЭС”, Нойбранденбург, ГДР, т. 2, 1976.

Kuleff, I., K. Kostadinov, Y. Yanev. A Method for Determination of Tellurium-132 in the Primary Cooling Water at Nuclear Power Reactors, In: Proc. 3rd Symposium of the Member-States at the Council of Economic Mutual Aid on “Water Conditions, Water Preparation and the Problems of Control of the Hermeticity of Fuel Elements of Nuclear Power Stations, Neubrandenburg, DDR, vol. 2, 1976 (in Russian).

27. Костадинов, К., И. Кулев, Я. Янев. Соосадительный метод выделения нептуния-239 из теплоносителя первого контура энергетических водо-водяных ядерных реакторов, В: Сб. докл. ІІІ-его симпозиума стран-членов СЭВ “Водный режим, водоподготовка и проблемы контроля герметичности оболочек твэлов на АЭС”, Нойбранденбург, ГДР, т.2, 1976. Kostadinov, K., I. Kuleff, Y. Yanev. Co-precipitation Method for Separation of Neptunium-239 from the Primary Coolant of Water-water Power Reactors, In: Proc. 3rd Symposium of the Member-States at the Council of Economic Mutual Aid on “Water Conditions, Water Preparation and the Problems of Control of the Hermeticity of Fuel Elements of Nuclear Power Stations, Neubrandenburg, DDR, vol. 2, 1976 (in Russian).

28. Тодоровски, Д., И. Кулев, Д. Димова, Г. чапкънова. Определяне съдържанието на уран в туниски фосфорити, преработвани в Химкомбината “Българо-съветска дружба”, гр. Димитровград и в продукти на тяхната преработка. Известия на КНТПВО, (бр.12), 1977, 191. Todorovsky, D., I. Kuleff, D. Dimova, G. Tshapkanova. Determination of the Content of Uranium in the Phosphorites from Tunesia Worked at Chemcombine “Bulgarian-Soviets Frendship”, Town of Dimitrovgrad and their Products of the Manufacture. Izv. KNTPVO, (no. 12), 1977, 191 (in Bulg.)

29. Kuleff, I., D. Todorovsky, M. Jovtschev. Ueber die Moeglichkeiten der Anwendung von Radionukliden zur Kontrolle der Korrosionsgeschwindichkeit bei der chemischen Reinigung von Dampfkesselanlagen. Brennstoff, Waerme, Kraft, 28, 1978, 319–322.

30. Kuleff, I., K. Kostadinov. Epithermal Neutron Activation Determination of Uranium in Environmental Waters by Neptunium-239 after Preconcentration on Activated Carbon. J. Radioanal. Chem., 46, 1978, 365–371.

31. Todorovsky, D., I. Kuleff. Edge-Punched Literature Retrieval System “Hot Atom Chemistry”. Radiochem. Radioanal. Lett., 36, 1978, 41–47.

32. Kuleff, I., J. G. Petrov. Neutron Activation Analysis of Inorganic Ion Content in Langmuir-Blodgett Multilayers. J. Radioanal. Chem., 49, 1979, 239–246.

33. Kuleff, I. Neutron Activation Determination of Uranium by Radiochemical Separation of Fission Tellurium. Anal. Chim. Acta, 108, 1979, 371–374.

34. Kuleff, I., P. Petrov, K. Kostadinov. Uranium Content Variations in Thermal Waters from the Westrhodope Crystalline Massif during Earthquakes in the Chepino Valley (South Bulgaria). J. Radioanal. Chem., 58, 1980, 267–274.

35. Петров, Й. Г., И. Кулев, Д. Платиканов. Съдържание на неорганични йони в Лангмюир-Блоджетови мултислоеве: I. Двувалентни катиони в мултислоеве от арахинова киселина.

14

Ann. Univ. Sofia, Fac. Chim., 73, 1979, 129–144. Petrov, J. G., I. Kuleff, D. Platikanov. Inorganic Ion Concentration in Langmuir-Blodgett

Multilayers. I. Divalent Cations in Arachidic Acid Multylayers, Ann. Univ. Sofia, Fac. Chim., 73, 1979, 129–144 (in Bulg.).

36. Петров, Й. Г., И. Кулев, Д. Платиканов. Съдържание на неорганични йони в Лангмюир-Блоджетови мултислоеве: II. Киселинни аниони в мултислоеве от октадециламин. Ann. Univ. Sofia, Fac. Chim., 73, 1979, 145–154.

Petrov, J. G., I. Kuleff, D. Platikanov. Inorganic Ion Concentration in Langmuir-Blodgett Multilayers. II. Inorganic Anions in Octadecylamine Multylayers, Ann. Univ. Sofia, Fac. Chim., 73, 1979, 145–154 (in Bulg.).

37 Kuleff, I., R. Djingova, K. Kostadinov, D. Todorovsky. Instrumental Neutron Activation Analysis of Trace Elements in Quartz. J. Radioanal. Chem., 62, 1981, 187–194.

38. Diakovitch, V., D. Todorovsky, R. Djingova, I. Kuleff, Y. Yanev. An Algorithm for Data Processing in Neutron Activation Analysis. J. Radioanal.Chem., 63, 1981, 13–21.

39. Kuleff, I., K. Kostadinov. Epithermal Neutron Activation Analysis of Uranium by Neptunium-239 Using High Resolution Gamma-Spectrometry. J. Radioanal. Chem., 63, 1981, 397–404.

40. Petrov, J. G., I. Kuleff, D. Platikanov. Neutron Activation Analysis of Metallions in Langmuir-Blodgett Multilayers of Arachidic Acid. J. Colloid Interface Sci., 88, 1982, 29–35.

41. Костадинов, К., И. Кулев, Р. Джингова, Д. Тодоровски. Съдържание на някои микропри-меси в българското кварцово стъкло. Строителни материали и силикатна промишленост, 23, 1982, 33–36.

Kostadinov, K., I. Kuleff, R. Djingova, D. Todorovsky. Content of Some of Microimpurities in Quartz Glass. Stroitelni materialy i silicatna promishlenost, 23, 1982, 33–36 (in Bulg.).

42. Кулев, И., Р. Джингова. Приложение на НАА в изучаването на археологически находки и произведения на изобразителното изкуство. Изв. на нац. ист. музей, 4, 1983, 290–295.

Kuleff, I., R. Djingova. Application of Neutron Activation Analysis in the Study of Archae-ological Finds and Works of Plastic Arts, Izv. National Historical Museum, 4, 1983, 290–295 (in Bulg.).

43. Костадинов, К., И. Кулев, С. Цочев. О дисперсности радионуклидов в теплонасителе первого контура энергетических ядерных реакторов ВВЭР-440. Ядрена енергия, (кн. 20), 1983, 93–100. Kostadinov, K., I. Kuleff, S. Zotschev. On the Dispersion of Radionuclides in the First Cooling Circuit of the Pressurized Light-water Cooled Power Reactors. Nuclear Energy, 20, 1983, 93–100 (in Russian).

44. Djulgerova, E., I. Kuleff, P. Bakyrdschiev, D. Apostolov. Magnesium im Kieferknochen und Zaehnen bei Ratten mit experimenteller Karies. Radiochem. Radioanal. Lett., 58, 1983, 243–252.

45. Kuleff, I., S. Zotschev. Neutron Activation Determination of the Uranium Content of the Primary Coolant of Water-Water Nuclear Reactors. Preprints der Vortraege und Posterbeitraege 3. Tagung “Nukleare Analysenverfahren”, Dresden, 1983, S. 235–237.

46. Kuleff, I., S. Zotschev. Neutron Activation Determination of the Uranium Content of the Primary Coolant of Water-Water Nuclear Reactors. J. Radioanal. Nucl. Chem., 83, 1984, 39–44.

47. Kuleff, I., R. Djingova. The Dandelion (Taraxacum officinale) – A Monitor for Environmental Pollution? Water, Air, and Soil Pollution, 21, 1984, 77–85.

48. Kuleff, I., R. Djingova, I. Penev. Analysis of Ancient and Medieval Glasses by INAA. J. Radioanal. Nucl. Chem., 83, 1984, 333–343.

49. Astrug, A., V. Kuleva, I. Kuleff, Z. Kiriakov, A. Tomov, R. Djingova. Trace Elements in Blood and Plasma of Patients with Chronic Renal Failure Treated with Maintenance Hemodialysis. Trace Elements in Medicine, 1, 1984, 65–70.

15

50. Kuleff, I., R. Djingova, G. Djingov. Provenience Study of Medieval Bulgarian Glasses by NAA and Cluster Analysis. Archaeometry, 27, 1985, 185–193.

51. Kuleff, I., R. Djingova, I. Penev. On the Chemical Composition of Medieval Bulgarian Glasses from Preslav (IX–X c.). Glastechn. Ber., 58, 1985, 232–236.

52. Petrov, J., I. Kuleff. The NAA in the Study of Langmuir-Blodgett Multilayers Composition – Relation to Other Methods of Investigation. Proc.1st Balkan Conf. on Activation Analysis, Varna, 1985, pp. 25–28.

53. Alexandrov, S., I. Kuleff, R. Djingova, S. Arpadjan, E. Taskaev. Impurity Determination in Bi2O3 and PbCl2 by NAA and AAS. Proc.1st Balkan Conf. on Activation Analysis, Varna, 1985, pp. 60–62.

54. Bakyrdschiev, P., I. Kuleff, E. Djulgerova, M. Iovtschev. The Influence of Some Additives to the Highly Carbohydrate Diet on the Distribution of Al, Ca, Mg, Mn, and Na in Teeth Enamel and Bones of Experimental Animals. Proc.1st Balkan Conf. on Activation Analysis, Varna, 1985, pp. 92.

55. Penev, I., I. Kuleff, R. Djingova. Simultaneous Neutron Activation Determination of Al, Mg, and Si in Rocks. J. Radioanal. Nucl. Chem., 96, 1985, 219–232.

56. Penev, I., I. Kuleff, R. Djingova. Simultaneous Neutron Activation Determination of Al, Mg, and Si in Rocks. Proc.1st Balkan Conf. on Activation Analysis, Varna, 1985, pp. 162–164.

57. Petrov, J., I. Kuleff, D. Platikanov. Interaction of Octadecylamine with Phosphate Counter Ions. J. Colloid Interface Sci., 109, 1986, 455–460.

58. Kuleff, I., S. Zotschev, G. Stefanov. Determination of 129I Content of the Primary Coolant of Nuclear Power Reactors. J. Radioanal. Nucl. Chem., 97, 1986, 73–79.

59. Kuleff, I., S. Zotschev, G. Stefanov. Determination of 129I Content of the Primary Coolant of Nuclear Power Reactors. Proc. 1st Balkan Conf. on Activation Analysis, Varna, 1985, pp. 162–164.

60. Djingova, R., I. Kuleff, I. Penev, B. Sansoni. Br, Cu, Mn, and Pb Content in the Leaves of Taraxacum officinale. Sci.Total Environ., 50, 1986, 197–208.

61. Kuleff, I., R. Djingova, I. Penev. INAA of Pottery for Provenance Study. J. Radioanal. Nucl. Chem., 99, 1986, 345–358.

62. Kuleff, I., R. Djingova, G. Djingov. Provenance Study of Pottery by INAA. Proc.7th Conf. Modern Trends in Activation Analysis, Copenhagen, vol. 2, 1986, pp. 787–891.

63. Кулев, И., Р. Джингова, К. чешмирова, И. Пенев. Многоелементен ИНАА на антични и средновековни стъкла. Изв. Нац. Ист. Музей, 6, 1986, 121–124.

Kuleff, I., R. Djingova, K. Cheshmirova, I. Penev. Multielement INAA of Ancient and Medieval Glass. Izv. National Historical Museum, 6, 1986, 121–124 (in Bulg.).

64. Цочев, С., И. Кулев, Г. Гьошев, Г. Стефанов. Относно радиоизотопния състав на течни радио-активни отпадъци в АЕЦ. Сб. докл. Нац. Съвещание ‘Атоменерго–1000’, Варна, 1985, с. 46–56. Zotschev, S., I. Kuleff, G. Goeshev, G. Stefanov. On the Radioisotope Content of Liquid Radioactive Wastes. Proc. of the National Meeting ‘Atomenergo-1000’, Varna, 1985, pp. 46–56 (in Bulg.).

65. Zotschev, S., I. Kuleff, G. Stefanov. Eine Methode zur Bestimmung von 89Sr und 90Sr im Primär kühlwasser von Leistungsreaktoren vom Typ WWER. Kernenergie, 30, 1987, 158–162.

66. Djingova, R., I. Kuleff, S. Arpadjan, S. Alexandrov, A. Voulgaropoulos, T. Sawidis. Neutron Activation and Atomic Absorption Analysis of Ulva lactuca and Gracilaria verrucosa from Thermaikos Gulf, Greece. Toxicol. Environ. Chem., 15, 1987, 149–158.

67. Kuleff, I., R. Djingova, G. Djingov. Provenance Study of Sgraffito Ceramics (XIII–XIV c.) from Shumen, Varna, and Tcherven (Bulgaria). Proc. 25th Symp. “Archaeometry”, Athens, 1986, Archaeometry, Maniatis, Y., (Ed.), Elsevier, Amsterdam, 1989, pp. 533–542.

16

68. Kuleff, I., R. Djingova, A. Alexandrova, M. Iovtschev. INAA of Medieval Glasses from the First Bulgarian Capital–Pliska (IX c.). Isotopenpraxis, 24, 1988, 90–92.

69. Zotschev, S., I. Kuleff. Über die Bestimmung langlebiger Radionuklide in Flüssigen radioak-tiven Abfällen aus Kernkraftwerken von Typ WWER-440. Isotopenpraxis, 24, 1988, 238–240.

70. Zotschev, S., I. Kuleff. Über die Bestimmung langlebiger Radionuklide in Flüssigen radioaktiven Abfällen aus Kernkraftwerken von Typ WWER-440. Proc.4th Meeting on Nuclear Analytical Methods, Dresden, 1987, vol. 2, pp. 480–485.

71. Kuleff, I., R. Djingova. Activation Analysis in Archaeology. In: Activation Analysis, Alfassi, Z., (Ed.), CRC Press, Inc., Boca Raton, Florida, 1990, vol. 2, pp. 427–489.

72. Kuleff, I., R. Djingova, A. Alexandrova, Chr. Angelova. INAA and AAS of Ancient Lead Anchors Found along the Bulgarian Black Sea Coast. Proc. Int. Symp. “Archaeometry”, Heidelberg, 1990, Archaeometry-90, Pernicka, E., G. Wagner (Eds.), Birkhäuser Verlag, Basel, 1991, pp. 199–208.

73. Djingova, R., I. Kuleff, I. Penev. INAA of Reference Materials for Archaeometric Investigations of Pottery. J. Radioanal. Nucl. Chem., 144, 1990, 397–406.

74. Djingova, R., I. Kuleff. Provenance Study of Pottery and Glass by INAA. In: Neutron Activation and Plasma Emission Spectrometric Analysis in Archaeology, Hughes, M., M. Cowell, D. Hook (Eds.), British Museum Occasional Paper 82, British Museum, London, 1991, pp. 121–141.

75. Djingova, R., S. Arpadjan, I. Kuleff. INAA and Flame AAS of Various Vegetable Reference Materials. Fresenius J. Anal. Chem., 339, 1991, 181–186.

76. Кулев, И., Р. Джингова, Г. Джингов, И. Пенев. Химически профил на находки от сграфито керамика. ІІІ. Изследване на археологически находки от Шумен и червен. Годишник на Музеите в Северна България, ХVІІ, 1991, 289–311.

Kuleff, I., R. Djingova, G. Djingov, I. Penev. Chemischezusammensetzung des mitelalterli-chen Sgraffitokeramik. III. Eine Untersuchung von archaeologischen Funde aus Schumen und Tscherven (12–14 Jh.). Jahrbuch der Museen in Nordbulgarien, 17, 1991, 289–311 (in Bulg.).

77. Джингова, Р., И. Кулев, И. Пенев. Химически профил на находки от средновековна сграфито керамика. II. Изследване на археологически находки от Калиакра, Каварна и Балчик. Изв. на народния музей Варна, 28 (43), 1992, 333–352.

Djingova, R., I. Kuleff, I. Penev. Chemischezusammensetzung des mitelalterlichen Sgraffitokeramik. II. Eine Untersuchung von archaeologischen Funde aus Kaliakra, Kavarna und Baltschik. Izv. aus Museum von Vrana, 28 (43), 1992, 333–352 (in Bulg.)

78. Kuleff, I., R. Djingova. Pottery provenance studies and choice of elements to be determined? Proc. Jahrestagung des Arbeitskreises Archaeometrie, Berlin, Februar 1991.

79. Ангелова, А., Й. Петров, И. Кулев. Стехиометрия на Лангмюир-Блоджетови мул-тислоеве от докозиламониев арсенат. Ann. Univ. Sofia, Fac. Chim., 84, 1992, 133–143. Angelova, A., J. Petrov, I. Kuleff. Stoichiometry of Langmuir-Blodgett Multyleayers of Docosylammonium Arsenate. Ann. Univ. Sofia, Fac. Chim., 84, 1992, 213–216.

80. Кулев, И., Р. Джингова, А. Александрова, И. Караджова. Комбиниран метод за определяне на химичния състав на археологически находки от олово. Ann. Univ. Sofia, Fac. Chim., 84, 1992, 145–160.

Kuleff, I., R. Djingova, A. Alexandrova, I. Karadjova. A Combined Method for Determination of the Chemical Components in Finding of Lead. Ann. Univ. Sofia, Fac. Chim., 84, 1992, 145–160.

81. Djingova, R., I. Kuleff. An Archaeometric Study of Medieval Glass from the First Bulgarian Capital, Pliska (9th to 10th c. AD). Archaeometry, 34, 1992, 53–61.

82. Angelova, A., J. Petrov, I. Kuleff. Stoichiometry of Langmuir-Blodgett Multilayers of Docosyl-ammonium Arsenate. Langmuir, 8, 1992, 213–216.

17

83. Джингова, Р., И. Кулев, И. Пенев. Химически профил на находки от сграфито керамика. II. Изследване на археологически находки от Калиакра, Каварна и Балчик (ХII–ХIV в.). Изв. Нар. музей Варна, 28 (43), 1992, 333–352.

Djingova, R., I. Kuleff, I. Penev. Chemical Profiles of Medieval Sgraffito Findings from Kaliakra, Kavarna and Balcik (ХII–ХIV Century.). Bull. de Musee Nacional de Varna, 28 (43), 1992, 333–352 (in Bulg.).

84. Djingova, R., I. Kuleff. Monitoring of Heavy Metal Pollution by Taraxcum officinale. In: Plants as Biomonitors, Markert, B. (Ed.), VCH, Weinheim–New York, 1993, pp. 435–460.

85. Djingova, R., I. Kuleff, N. Andreev. Comparison of the Ability of Several Vascular Plants to Reflect Environmental Pollution. Chemosphere, 27, 1993, 1385–1396.

86. Todorovsky, D., I. Kuleff. On the Uranium Content in Some Technogenic Products Potential Environmental Pollutants. J. Radioanal. Nucl. Chem., 176, 1993, 405–413.

87. Кулев, И., Р. Джингова, И. Пенев. Химически профил на находки от сграфито керамика. І. Изследване на археологически находки от Варна (ХІІ–ХІV век). Ann. Univ. Sofia, Fac. Chim., 81, 1994, 63–78.

Kuleff, I., R. Djingova, I. Penev. Chemical Content of Medieval Sgraffito Findings of Sgraffito. I. Investigation of Archaeological Findings from Varna (XII–XIV Centuries). Ann. Univ. Sofia, Fac. Chim., 81, 1994, 63–78 (in Bulg.).

88. Кулев, И., Р. Джингова, Г. Джингов, И. Пенев. Химически профил на находки от сграфито керамика. ІV. Изследване на археологически находки от Велико Търново. Годишник на Музеите в Северна България, ХІХ, 1993, 131–158.

Kuleff, I., R. Djingova, G. Djingov, I. Penev. Chemischezusammensetzung des Mitelalterlichen Sgraffitokeramiks. IV. Eine Untersuchung von archäologischen Funde aus Veliko Tarnovo. Jahrbuch der Museen in Nordbulgarien, 19, 1993, 131–158.

89. Djingova, R., I. Kuleff. On the Sampling of Vascular Plants for Monitoring of Heavy Metal Pollution. In: Environmental Sampling for Trace Analysis, Markert, B. (Ed.), VCH, Weinheim, 1994, pp. 395–414.

90. Kuleff, I., E. Pernicka. On the INAA of Native Copper: Some Methodological Considerations. J. Radioanal. Nucl. Chem., 191, 1995, 143–159.

91. Kuleff, I., R. Djingova, A. Alexandrova, V. Vakova, B. Amov. INAA, AAS, and Lead Isotope Analysis of Ancient Anchors from the Black Sea. J. Radioanal. Nucl. Chem., 196, 1995, 65–76.

92. Кулев, И., Р. Джингова, Г. Джингов, И. Пенев. За химичния състав на стъклата от старите български столици Плиска и Преслав. Годишник на Музеите в Северна България, ХХ, 1994, 469–495.

Kuleff, I., R. Djingova, G. Djingov, I. Penev. On the Chemical Content of Glasses of Old Bulgarian Capitals Pliska and Preslav. Jahrbuch der Museen in Nordbulgarien, ХХ, 1994, 469–495 (in Bulg.).

93. Джингова, Р., И. Кулев, А. Вулгаропулос. Исследование загрязнения тяжелыми метал-лами в Софии (Болгарии) и Солониках (Греции) с применением Taraxacum officinale в качестве биомонитора. Экологическая химия, 4, 1995, 270–274.

Djingova, R., I. Kuleff, A. Voulgaropoulos. Heavy Metal Pollution in Sofia (Bulgaria) and Thessaloniki (Greece) Using Taraxacum officinale as Bioindicator. Ecological Chemistry (St. Petersburg), 4, 1995, 241–245 (in Russian).

94. Кулев, И., Р. Джингова. Археометрични изследвания с НАА в България. Analytical Laboratory, 5, 1996, 75–88.

Kuleff, I., R. Djingova. Archaeometric Investigations Using Neutron Activation Analysis in Bulgaria. Analytical Laboratory, 5, 1996, 75–88. (in Bulg.).

18

95. Kuleff, I., R. Djingova. Provenance Study of Pottery: Choice of Elements to be Determined. Revue D’Archeometrie, 20, 1996, 57–67.

96. Djingova, R., G. Wagner, I. Kuleff, D. Peshev. Investigation on the Time-dependant Variations in Metal Concentration in the Leaves of Populus nigra ‚Italica‘. Sci. Total Environ., 184, 1996, 197–202.

97. Kuleff, I., R. Djingova. Chemical Profile of the Pottery Production in the Ceramic Centre Near Nicopolis ad Istrum. Analytical Laboratory, 5, 1996, 238–244.

98. Pernicka, E., F. Begemann, S. Schmitt-Strecker, H. Todorova, I. Kuleff. Prehistoric Copper in Bulgaria: Its Composition and Provenance. Eurasia Antiqua, 3, 1997, 41–180.

99. Kuleff, I., R. Djingova. Chemical Profile of Medieval Sgraffito Ceramics Finds. V. Investigation of Archaeological Finds from Nessebar and Sozopol (Bulgaria). Berliner Beiträge z. Archäometrie, 15, 1998, 217–236).

100. Kuleff, I., R. Djingova, P. Balabanov. Archaeometric Investigation of Pottery from Thracian Town Deultum (VI–IV c. B.C.). Berliner Beiträge z. Archäometrie, 15, 1998, 199–236.

101. Kuleff, I., R. Djingova. Mean Concentration of Elements Determined in Ohio Red Clay. J. Radioanal. Nucl. Chem., 237, 1998, 3–6.

102. Djingova, R., Ju. Ivanova, I. Kuleff. Comparative Evaluation of the Possibilities of INAA, EDXRF, ICP-AES and AAS in the analysis of plants. J. Radioanal. Nucl. Chem., 237, 1998, 25–34.

103. Ivanova, J., R. Djingova, I. Kuleff. Determination of Some Heavy and Toxic Elements in Plants and Soils with ED-XRF Using 241Am as Excitation Source. J. Radioanal. Nucl. Chem., 238, 1998, 29–32.

104. Kuleff, I., R. Djingova. Archaeometric Investigation of Roman Glass Finds from Bulgaria. Berliner Beiträge z. Archäometrie, 16, 1999, 183–198.

105. Djingova, R., I. Kuleff. Seasonal Variations in the Metal Concentration of Taraxacum officinale, Plantago major, and Plantago lanceolata. Chem. Ecol., 16, 1999, 239–253.

106. Djingova, R., G. Wagner, I. Kuleff. Screening of Heavy Metal Pollution in Bulgaria Using Populus nigra ‘Italica’. Sci. Total Environ., 234, 1999,175–184.

107. Ivanova, Ju., R. Djingova, I. Kuleff. Possibilities of ED-XRF with Radionuclide Sources for Analysis of Plants. J. Radioanal. Nucl. Chem., 242, 1999, 569–575.

108. Kuleff, I., R. Djingova, Ju. Ivanova. Determination of Ba, Fe, Sr, and Zr in Silicate Materials with ED-XRF Using 241Am Excitation Source. J. Radioanal. Nucl. Chem., 242, 1999, 787–791.

109. Djingova, R., P. Kovacheva, I. Kuleff. On the Use of Taraxacum officinale Web. and Populus nigra L. ‘Italica” for the Evaluation of Heavy Metal Pollution Risk in Urban Ecosystems. Phytologia Balcanica, 5, 1999, 123–129.

110. Djingova, R., I. Kuleff, P. Kovacheva. Risk Assessment of the Accumulation of Heavy Metals in Park Ecosystems. In: Proc.Conf.Instrumental Methods of Analysis Modern Trends and Applications, 19–22 September, 1999, Chalkidiki (Greece), pp. 570–574.

111. Kuleff, I., R. Djingova, G. Kabakhcieva. On the Origin of the Roman Pottery from Moesia Inferior (North Bulgaria). Archaeologia Bulgarica, III (3), 1999, 29–38.

112. Kuleff, I., R. Djingova, B. Zlateva. Applications of ICP-AES and AAS for Analysis of Archaeological Bones. In: Proc. Conf. Instrumental Methods of Analysis. Modern Trends and Applications, 19–22 September, 1999, Chalkidiki (Greece), pp. 176–180.

113. Kuleff, I., R. Djingova, B. Zlateva. Archaeometric Investigation of Bones from Thrace. Archaeologia Bulgarica, 4 (1), 2000, 7–12.

114. Kovacheva, P., R. Djingova, I. Kuleff. On the Representative Sampling of Plants for Multielement Analysis. Phytologia Balcanica, 6, 2000, 91–102.

115. Кулев, И. Повече за урана и опасността от него. Химия, X (2), 2001, 115–124.

19

Kuleff, I. More about Uranium and the Danger from it, Khimiya, X (2), 2001, 115–124 (in Bulg.).

116. Kuleff, I., R. Djingova. Archaeometric Investigation of Sgraffito Ceramics from Medieval Bulgaria. Archaeologia Bulgarica, V (3), 2001, 71–82.

117. Кулев, И. Защо измряха динозаврите? или Как прецизният химичен анализ даде отговор на загадката. Химия, X (6), 2001, 409–423.

Kuleff, I. Why Dinosouria Died or How the Precise Chemical Analysis Solved this Enigma. Chemistry, X (6), 2001, 409–423 (in Bulg.).

118. Kuleff, I., R. Djingova, M. Arnaudov, D. Gergova. Provinance Study of Iron Age Amber from Bulgaria. Proc. Int. Symp. “Archaeometry”, Budapest, April 27–May 3, 1998, In: Archaeometry 98, Jerem, E., K. Biró (Eds.), Britain Archaeological Reports International Series 1043 (II) and Archaeolinqua Central European Series 1, Oxford, 2002, pp. 757–760.

119. Djingova, R., I. Kuleff. Concentration of Cesium-137, Cobalt-60, and Potasium-40 in Some Wild and Edible Plants around Nuclear Power Plant in Bulgaria. J. Environ. Radioactivity, 59, 2002, 61–73.

120. Kuleff, I., E. Pernicka. INAA of Geological Standard Reference Materials. J. Radioanal. Nucl. Chem., 251, 2002, 139–143.

121. Schifer, T., I. Kuleff, P. Mishev, E. Pernicka. On the Determination of Zinc in Clay and Pottery Materials by INAA. J. Radioanal. Nucl. Chem., 251, 2002, 319–322.

122. Kuleff, I., R. Djingova. On the Glass Production during Roman and Medieval Times on the Territory of Bulgaria. Archaeologia Bulgarica, VI (3), 2002, 101–108.

123. Kuleff, I., M. Junk, L. Vagalinski. Archaeometric Investigation of Eaglehead-buckles from Bulgaria. Historical Metallurgy, 36 (2), 2002, 77–83.

124. Guzowska, M., I. Kuleff, E. Pernicka, M. Satir. On the Origin of Course Wares of Troia VII. Proc. Symp. The Landscape of Troia between Earth History and Culture, Heidelberg, 1–4 April 2001, in: Troia and the Troad, Wagner, G., E. Pernicka, H. P. Uerpmann (Eds.), Springer, 2003, Berlin-Heidelberg, pp. 233–249.

125. Zlateva, B., M. Kuzmanov, I. Kuleff, R. Djingova, D. Gergova. Multi-element Analysis of Bones for Dietary Reconstruction of the Inhabitants of Thracia at Hellenistic Times (Bulgaria). Berliner Beiträge z. Archäometrie, 20, 2003, 117–131.

126. Zlateva, B., M. Kuzmanov, I. Kuleff, R. Djingova, D. Gergova. Еlemental Analysis of Bones and Diet Reconstruction of the Inhabitants of Thracia (Bulgaria) in the Hellenistic Period. Proc. 4th Symposium of the Hellenic Society for Archaeometry, Athens, May 28–31, 2003, BAR, International Ser. 1746, Facorellis, Y., N. Zacharias. K. Polikreti (Eds.), 2008, pp. 215–223.

127. Zlateva, B., I. Kuleff. On the Possibilities for Determination of the Paleodiet by the Chemical Analysis of Archaeological Bones. Archaeologia Bulgarica, VII (2), 2003, 1–23.

128. Zlateva, B., R. Djingova, I. Kuleff. On the Possibilities of ICP-AES for Analysis of Archaeological Bones. Cent. Eur. J. Chem., 3, 2003, 201–221.

129. Iliev, I., I. Kuleff, J. Adam, E. Pernicka. Electrochemical Lead Separation from Copper, Copper Alloy, Silver and Silver Alloy for Isotope Ratio Determination in Archaeometric Investigations. Anal. Chim. Acta, 497, 2003, 227–233.

130. Kuleff, I., E. Pernicka, D. Gergova, I. Iliev. Chemical and Lead Isotope Compositions of Lead Artifacts from Ancient Thracia. In: Proc. 3rd Intern. Conf. Instrumental Methods of Analysis. Modern Trends and Application, Thessaloniki, 23–27 September 2003, pp. 15–18.

131. Zlateva, B., R. Djingova, I. Kuleff. On the Possibilities of ICP-AES and ICP-MS for Analysis of Archaeological Bones. In: Proc. 3rd Intern.Conf. Instrumental Methods of Analysis. Modern Trends and Application, Thessaloniki, 23–27 September 2003, pp. 303–306.

20

132. Djingova, R., P. Kovacheva, I. Kuleff. On the Introduction of Bioconversion Factors in the Risk Characterization for the Environment. Ann. Univ. Sofia, Fac. Chim., 96, 2004, 261–267.

133. Djingova, R., B. Zlateva, I. Kuleff. On the Possibilities of ICP-MS for Analysis of Archaeological Bones for Reconstruction of Paleodiet. Talanta, 63, 2003, 785–789.

134. Kovacheva, P., R. Djingova, I. Kuleff. Quick Risk Assesment of Metal Pollution in Agroecosystems Using Bioconversion Factors. In: Proc. 6th Intern. Symp. Environmental Contamination in Central and Eastern Europe and the Commonwealth of Independant States, 1–4 September 2003, Praque, Czech Republic, CD-ROM.

135. Djingova, R., I. Kuleff, B. Markert. Chemical Fingerprinting of Plants. Ecol. Res., 19, 2004, 3–11.

136. Djingova, R., D. Todorovsky, L. Tsankov, K. Staevski, P. Kovacheva, I. Kuleff, R. Tsenov. Historical review, present status and perspectives of nuclear science education at the Sofia University”, In: Proc. Int. Workshop “Education and Knowledge Preservation in Nuclear Sciences in the Balkan Countries”, Kovacheva, P., D. Todorovsky (Eds.), Theta Consult Ltd., Sofia, 2004, I.1, CD-ROM.

137. Кулев, И. Ядрената енергетика – за и против. Химия, XIII (1), 2004, 55–72. Kuleff, I. Nuclear Energy – Pro and Anti. Khimiya, XIII (1), 2004, 55–72 (in Bulg.).138. Djingova, R., P. Kovacheva, B. Tododrov, B. Zlateva, I. Kuleff. On the Influence of Soil

Properties on the Transfer of 137Cs from Two Soils (Cromic Luvisol and Eutric Fluvisol) to Wheat and Cabbage. J. Environ. Radioactivity, 82, 2005, 63–79.

139. Кулев, И. За имената на най-новите елементи в периодичната система. Химия, ХІV (3), 2005, 196–203.

Kuleff, I. On the names of the newest elements of the periodic system. Кhimiya, XIV (3), 2005, 196–203 (in Bulg.).

140. Кулев, И., Ст. Стоянов. За оценката на качеството и професионализма на университет-ските преподаватели в природните науки. Наука, XV (3), 2005, 16–22.

Kuleff, I., St. Stoyanov. Evaluation of the Quality and Professional Ability of the University Teachers in the Field of Natural Sciences. Nauka (Sofia), XV (3), 2005, 16–22 (in Bulg.).

141. Кулев, И., Ст. Стоянов. Система от показатели за атестиране на университетските пре-подаватели в природните науки. Наука, ХV (5), 2005, 3–9.

Kuleff, I., St. Stoyanov. System of Evaluation Factors for University Teachers in Natural Sciences. Nauka (Sofia), XV (5), 2005, 3–9 (in Bulg.).

142. Kuleff, I., I. Iliev, E. Pernicka, D. Gergova. Chemical and Lead Isotope Compositions of Lead Artefacts from Ancient Thracia (Bulgaria). Cultural Heritage, 7, 2006, 244–256.

143. Popov, L., X. Hou, S. P. Nielsen, Y. Yu, R. Djingova, I. Kuleff. Determination of Radiostrontium in Environmental Samples Using Sodium Hydroxide for Separation of Strontium from Calcium. J. Radioanal. Nucl. Chem. (Articles), 269 (1) 2006, 161–173.

144. Popov, L., I. Kuleff, R. Djingova. Determination of Radiocaesium in Environmental Water Samples Using Copper Ferro(II)cyanide and Sodium Tetraphenilborate. J. Radioanal. Nucl. Chem. (Articles), 269 (1), 2006, 203–207.

145. Биолчев, Б., Ст. Стоянов, И. Кулев. Университетът – Що е то?, Наука, XVI (2), 2006, 17–24. Biolchev, B., St. Stoyanov, I. Kuleff. The University – What is this?, Nauka (Sofia), XVI (2), 2006, 17–24 (in Bulg.).

146. Кулев, И. Хафний – Що е то?, Химия, ХV (2), 2006, 127–134. Kuleff, I. Hafnium – What is this?, Khimiya, XV (2), 2006, 127–134 (in Bulg.).147. Кулев, И. Активационният анализ на 70 години. Химия, ХV (6), 2006, 448–468. Kuleff, I. Activation Analysis at 70. Khimiya, XV (6), 2006, 448–468 (in Bulg.).

21

148. Kuleff, I., T. Stoyanov, E. Pernicka. On the Origin of Stamped Amphorae from Thracia (Bulgaria). Oxford J. Archaeology, 26, 2007, 53–78.

149. Kuleff, I., T. Stoyanov, E. Pernicka. On the Origin of Stamped Amphorae from Thracian Cities in Bulgaria. Proc. 4th Symposium of the Hellenic Society for Archaeometry, Athens, May 28–31, 2003, BAR, International Ser. 1746, Facorellis, Y., N. Zacharias, K. Polikreti (Eds.), 2008, pp. 287–298.

150. Kuleff, I., R. Djingova. Archaeometric Investigations at the University of Sofia (Bulgaria). Archaeometry, 49, 2007, 245–253.

151. Iliev, I., D. Antonov, I. Kuleff, E. Pernicka. Chemical and Lead Isotope Composition of 6th–1st Centuries Bronze Tools from North-Western Bulgaria. In: Proc. Int. Archaeological Conf. The Lower Danube in Antiquity, 6–7.10.2005, Tutrakan (Bulgaria), Vagalinsky L. (Ed.), 2007, pp. 7–23, ISBN 978-954-90387-1.

152. Zlateva, B., I. Kuleff, R. Djingova. Chemical Composition of the Resin, Found in the Bottom of Ancient Greek Amphora. In: Proc. Int. Archaeological Conf. The Lower Danube in Antiquity, 6–7.10.2005, Tutrakan (Bulgaria), Vagalinsky, L. (Ed.), 2007, pp. 55–58, ISBN 978-954-90387-1.

153. Кулев, И. За полония – Убиецът на агентите. Химия, ХVІ, 2007, 139–148. Kuleff, I. About Polonium: The Killer of Secret Service Men, Khimiya, ХVІ, 2007, 139–148.

(in Bulg.).154. Kostova, I., N. Peica, I. Kuleff, V. Kumar, W. Kiefer, S. P. Ojha, V. K. Rastogi. Vibrational

Characterization of New Sm(III) Complex. Asian Chemistry Letters, 11 (1/2), 2007, 123–132.155. Кулев, И. Бревий или Протоактиний, или матерното вещество на актиния. Химия, ХVIІ,

2008, 118–127. Kuleff, I. Brevium or Protoactinium, or the Mather Substance of Actinium. Khimiya, ХVIІ,

2008, 118–127 (in Bulg.).156. Кулев И. Археометрията – един от пътищата за представяне на българската идентичност

в Европейския Съюз. Изв. на Съюза на Учените, Варна, 2/2005; 1/2006, 2008, 3–10. Kuleff, I. Archaeometry – One of the Ways for Presentation of Bulgarian Identity to Europian

Union. Izvestiya na Sayuza na Uchenite – Varna, 2/2005; 1/2006, 2008, 3–10 (in Bulg.).157. Русев, P., И. Кулев, В. Славчев, Й. Бояджиев. Нови данни за вероятните суровинни източ-

ници за изработка на златните предмети от Варненския халколитен некропол. Списание на Българското геологическо дружество, 69 (1–3), 2008, 87–90.

Rusev, R., I. Kuleff, V. Slavchev, J. Boyadzhiev. New Data about Possible Sources of Gold Used for Production of the Objects from Halcolithic Necropolis of Varna, Journal of Bulgarian Geological Society, 69 (1–3), 2008, 87–90 (in Bulg.).

158. Kuleff, I., M. Tonkova, T. Stoyanov. Chemical Composition of Gold Breast Plates from Ancient Thrace (5th–4th Century BC). Archaeologia Bulgarica, XIII (2), 2009, 11–20.

159. Ivanova, S., I. Kuleff. Archaeological Amber from the Late Bronze and the Iron Age in the Territory of Ancient Thrace Archaeologia Bulgarica, ХІІІ (3), 2009, 23–46.

160. Iliev, I., K. Dimitrov, I. Kuleff, E. Pernicka. Archaeometallurgical Studies on Eneolithic Copper Artefacts from Northeastern Bulgaria. In: Proc. 2nd Int. Conf. “Archaeometallurgy in Europe. Selected Papers, Aquileia, Italy, 17–21 June, 2007, Associazione Italiana di Metallurgia, Milano, Paper No. 99, ISBN 88-85298-71-0.

161. Bonev, V., I. Iliev, I. Kuleff, T. Stoyanov. Chemical Composition of Bronze Artifacts from North-Western Bulgaria. Archaeologia Bulgarica, XIV (2), 2010, 11–22.

162. Kuleff, I. Archaeometric Investigation of Bone for Determination of the Diet of Ancient Population of Apollonia Pontika (V–III century BC). Advances in Bulgarian Science, (1), 2009, 11–15.

22

163. Кулев, И. Мнение за присъждането на научните степени и звания по химия. Наука, XIX (5), 2009, 66–72.

Kuleff, I. An Opinion on the Scientific Degrees and Academic Ranks in Chemistry. Nauka (Sofia), XIX (5), 2009, 66–72 (in Bulg.).

164. Kuleff, I., T. Stoyanov, M. Tonkova. Gold Thracian Appliqués – Authentic or Fake? ArcheoScience – Revue d’Archéométrie, 33, 2009, 365–373.

165. Kuleff, I. Archaeometric Investigation of the Gold in the Chalcolithic Necropolis of Varna (5th Millennium BC). Advances in Bulgarian Science, (2), 2009, 16–22.

166. Zareva, S., I. Kuleff. The Application of the Derivative IR-spectroscopy and HPLC-ESI-MS/MS in the Analysis of Archaeological Resin. Spectrochim. Acta Part A, 76, 2010, 283–286.

167. Кулев, И. Коперниций – най-тежкият засега елемент в периодичната система. Химия, ХIХ (4), 2010, 305–314.

Kuleff, I. Copernitium – The Up till Now Heaviest Element in Periodic Table. Khimiya, ХIХ (4), 2010, 305–314.

168. Djingova, R., B. Zlateva, I. Kuleff. On the Sample Preparation of Archaeological Bones for Elemental Analysis. Asian Chemistry Letters, 14, 2010, 177–186.

169. Kuleff, I. Archaeometric Investigation in Bulgaria. In: Interdisziplinäre Forschungen zum Kulturerbe auf der Balkanhalbinsel, Nikolov, V., K. Bacvarov, H. Popov (Eds.), Beiträge des Humboldt-Kollegs Interdisziplinäre Forschungen zum Kulturerbe auf der Balkanhalbinsel, 19–22 November, 2009, Sofia, 2011, pp. 369–382.

170. Кулев И. Химия и aрхеометрия. Наука, XXI (3), 2011, 12–17. Kuleff, I. Chemistry and Archaeometry, Nauka (Sofia), XXI (3), 2011, 12–17 (in Bulg.).171. Кулев, И. Мария Склодовска-Кюри и Международната година на химията. Химия, ХX,

2011, 83–95. Kuleff, I. Maria Sklodovska-Curie and the International Year of Chemistry, Khimiya, ХX,

2011, 83–95 (in Bulg.).172. Todorov, B., I. Kuleff. On the Chemical Composition of the Ingot from Cape Kaliakra (Bulgaria).

Archaeologia Bulgarica, ХV (1), 2011, 77–81.173. Кулев, И. За Мария Склодовска-Кюри и радиоактивността. Наука, XXI (6), 2011, 17–21.

Kuleff, I. On Maria Sklodovska-Curie and Radioactivity, Nauka (Sofia), XXI (6), 2011, 17–21 (in Bulg.).

174. Кулев, И. Археометрия в Софийския Университет. Българско списание за химия, 1 (3), 2012, 115–122.

Kuleff, I. Archaeometry in Sofia University. Bulg. J. Chem., 1 (3), 2012, 115–122.175. Кулев, И. Ароматите – в миналото и днес. Наука, XXII, (5), 2012 (in press).

Kuleff, I. Aroma – in the Past and Today. Nauka (Sofia), XXII, (5), 2012, (in press), (in Bulg.).176. Bonev, V., B. Zlateva, I. Iliev, I. Kuleff. Punches, Moulds and Matrixes from North-Eastern

Bulgaria, an Archeometallurgical Study. In: Studia in Honorem Acad. D. P. Dimitrov. Damyanov, M., H. Popov, V. Kacarova-Popova, К. Rabadjiev (Eds.), Sofia, 2013 (in press).

177. Lesigyarski, D., Ž. Šmit, K. Koseva, I. Kuleff. Chemical Composition of Archaeological Glass Finds from the South-Eastern Bulgaria. J. Radioanal. Nucl. Chem., 2013 (in press).

miscellaneous PuBlications

178. Николов, К., И. Кулев. Плутоний - енергийният източник на бъдещето. В: Алманах Вселена-69, Наука и изкуство, С., 1968, с. 218–222.

Nikolov, K., I. Kuleff. Plutonium – the Еnergy Source of the Future, In: Almanac Vselena-69”, “Nauka i Izkustwo”, 1968, pp. 218–222. (in Bulg.).

23

179. Кулев, И. Проф. д-р Ото Хан. сп. „Природа“, 18 (2), 1969, 99–101. Kuleff, I. Prof. Dr. Otto Hahn, Priroda (Sofia), 18 (2), 1969, 99–101 (in Bulg.).180. Кулев, И. Химични ефекти вследствие ядрени трансформации. сп. „Природа“, 23 (6),

1974, 20–26. Kuleff, I. Chemical Effects as a Result of Nuclear Transformations. Priroda (Sofia), 23 (6),

1974, 20–26 (in Bulg.).181. Кулев, И. Съветската радиохимия на 65 години. сп. „Природа“, 32 (3), 1983, 78–81. Kuleff, I. 65 Years Soviet Radiochemistry. Priroda (Sofia), 32 (3), 1983, 78–81 (in Bulg.).182. Кулев, И. Позитроните и химията, сп. „Природа“, 33 (2), 1984, 14–20. Kuleff, I. Positrons and Chemistry. Priroda (Sofia), 33 (2), 1984, 14–20 (in Bulg.).183. Петков, А., И. Кулев. ХХV Международен симпозиум по археометрия. сп. „Археология“,

ХХIХ (2), 1987, 47–49. Petkov, A., I. Kuleff. 25th International Symposium on Archaeometry, Archaeology (Sofia),

29 (2), 1987, 47–49 (in Bulg.).184. Кулев, И. ХХVII Международен симпозиум по археометрия. сп. „Археология“, ХХХII

(1), 1991, 66–68. Kuleff, I. 27th International Symposium on Archaeometry. Archaeology (Sofia), 32 (1), 1991,

66–68 (in Bulg.).185. Кулев, И., Д. Гергова. Втората южноевропейска конференция по археометрия. сп.

„Археология“, ХХХIII (1), 1992, 60–61. Kuleff, I., D. Gergova. 2nd Southeuropian Conference on Archaeometry. Archaeology (Sofia),

33 (1), 1992, 60–61 (in Bulg.).186. Кулев, И. Научните факти за савана на Христос. в-к „Орбита“, бр. 19 (1130), 9 май 1992.

Kuleff, I. Scientific Facts about the Shroud of Christ, “Orbita” (Sofia), (No. 19) (1130), 09.05.1992 (in Bulg.).

187. Кулев, И. Евроанализ IХ. Analytical Laboratory, 5, 1996, 279–282. Kuleff, I. Euroanalysis IX, Analytical Laboratory (Sofia), 5, 1996, 279–282. (in Bulg.).188. Кулев, И. ХХХI Международен симпозиум по археометрия. Analytical Laboratory, 7,

1998, 237–239. Kuleff, I. 31st International Symposium on Archaeometry, Analytical Laboratory (Sofia), 7,

1998, 237–239 (in Bulg.).189. Кулев, И. Българинът ‘изяжда’ средно до 3 мг уран годишно. в-к „Демокрация“, бр. 140

(2944), 2 юни 1999.190. Kuleff, I. Bulgarian People ‘Еat’ about 3 Milligrams Uranium in One Year, “Demokratsia”

(Sofia), (No. 140) (2944), 02.06.1999 (in Bulg.).191. Кулев, И. Колко опасен е обедненият уран. в-к “Демокрация”, бр.15 (3487), 19 януари 2001.

Kuleff, I. How Dangerous is Depleted Uranium. “Demokratsia” (Sofia), No. 15 (3487), 19.01.2001 (in Bulg.).

192. Кулев, И. Сдружение по интереси “Бояджийска Промишленост” Акционерно дружество и Имперската Химическа Промишленост. Стратегии за Растеж и Оцеляване “IG Farben and ICI, 1925–53”. Strategies for Growth and Survival” – рецензия. Химия, ХVI, 2007, 300–317. Kuleff, I. The Unit of Interest IG Farben Industry and Imperial Chemical Industry. Strategies for Growth and Survival, review, Khimiya, 16, 2007, 300–317 (in Bulg.).

193. Кулев, И. Втора международна конференция “Археометалургията в Европа”. Химия и индустрия, 78, 2007, 36–37.

Kuleff, I., 2nd International Conference “Archaeometallurgy in Europe, Khimiya i Industriya, 78, 2007, 36–37 (in Bulg.).

24

194. Кулев, И. Изследванията върху радия от началото на 20-ти век във Виена - рецензия “Trafficking Materials and Gendered Experimental Practices: Radium Research Early 20th Century in Vienna” (рецензия) Химия, ХVIІ (5), 2008, 392–402.

Kuleff, I. Investigation on the Radium at the Beginning of the 20th Century in Vienna, “Trafficking Materials and Gendered Experimental Practices: Radium Research Early 20th Century in Vienna” – a Review, Khimiya, 17 (5), 2008, 392–402 (in Bulg.).

195. Кулев, И. Шеста конференция “Егейски дни на аналитичната химия”. Химия и индустрия, 79, 2008, 69–70.

Kuleff, I. 6th Conference “Eagean Days on Analytical Chemistry”, Khimiya i Industriya, 79, 2008, 69–70 (in Bulg.).

196. Кулев, И. Работно съвещание “Aurum-2009”. Химия и индустрия, 80, 2009, 32–34. Kuleff, I. Workshop “Aurum-2009”, Khimiya i Industriya, 80, 2009, 32–34 (in Bulg.).

197. Кулев, И. Пета черноморска конференция по аналитична химия. Химия и индустрия, 80, 2009, 76–77.

Kuleff, I. 5th Black Sea Conference on Analytical Chemistry, Khimiya i Industriya, 80, 2009, 76–77 (in Bulg.).

198. Кулев И. Номенклатура по неорганична химия. Препоръки на IUPAC 2005 – рецензия. Химия и индустрия, 81 (1), 2010, 27–28.

Kuleff, I. Nomenclature of Inorganic Chemistry, IUPAC Recommendations 2005 – a review. Khimiya i Industriya, 81 (1), 2010, 27–28 (in Bulg.).

199. Кулев, И. Първи випуск бакалаври по ядрена химия. Химия и индустрия, 81 (2), 2010, 65–66. Kuleff, I. The First Batch of Bachelors on Nuclear Chemistry. Khimiya i Industriya, 81 (2), 2010, 65–66 (in Bulg.).

200. Кулев, И. 38-ми Международен симпозиум по археометрия. Химия и индустрия, 81 (2), 2010, 65–66.

Kuleff, I. 38th International Symposium on Archaeometry, Khimiya i Industriya, 82 (2), 2010, 65–66 (in Bulg.).

201. Кулев, И. Година на химията. Химия и индустрия, 82 (1–2), 2011, 2–4. Kuleff, I. The Year of Chemistry. Chemistry and Industry, 82 (1–2), 2011, 2–4 (in Bulg.).202. Кулев, И. Международната система от единици на 50 години. Химия, ХХ, 2011, 174–179.

Kuleff, I. 50 Years of International System of Units. Khimiya, 20, 2011, 174–179 (in Bulg.).203. Кулев, И. Семинар на консерваторите в България. Химия и индустрия, 82 (1–2), 2011, 36–37.

Kuleff, I. The Seminar of Conservators in Bulgaria, Khimiya i Industriya, 82, (1–2), 2011, 36–37 (in Bulg.).

204. Кулев, И. Мариета Блау – Виена и радиоактивността, в-к Homo Science, бр. 5, 23.09.2011. Kuleff, I. Marieta Blau – Vienna and the Radioactivity. Homo Science, (Sofia), No. 5, 23.09.2011 (in Bulg.).

205. Кулев, И. Свят населен с демони – рецензия. Наука, XXI (5), 2011, 82–83. Kuleff, I. The demon-haunted world, a review, Nauka (Sofia), 21 (5), 2011, 82–83 (in Bulg.).206. Кулев, И. Археометалургия в Европа – Трета конференция. Химия и индустрия, 82 (2),

2011, 67–68. Kuleff, I. Archaeometallurgy in Europe – the 3rd Conference, Khimiya i Industriya, 82 (2)

2011, 67–68 (in Bulg.).207. Кулев, И. Кой кой е в българската наука – рецензия. Химия и индустрия, 82, 2011, 84–85.

Kuleff, I. Who is Who in Bulgarian Science, a Review, Khimiya i Industriya, 82 (2), 2011, 84–85 (in Bulg.).

25

208. Кулев, И. Използване на медта от културата на „камбановидните чаши” – рецензия. Българско е-Списание за Археология, 1 (2), 2012, 83–90.

Kuleff, I. Using of Copper in the Culture of “Bell Beaker”, a review, Bulgarian e-Journal for Archaeology, 1 (2), 2012, 83–90 (in Bulg.).

209. Kuleff, I. Bell Beaker Copper Use in Central Europe, a Review. Archaeologia Bulgarica, ХVI, 2012 (in press).

210. Кулев, И. Електрохимичните методи в археометрията – рецензия. Химия и индустрия, 83, 2012 (in press).

211. Kuleff, I. Electrochemical Methods in Archaeometry, a Review. Khimiya i Industriya, 83, 2012 (in press) (in Bulg.).

212. Кулев, И. Електрохимични методи в археометрията, консервацията и реставрацията – рецензия. Българско е-Списание за Археология, 1 (2), 2012, 137–140.

Kuleff, I. Electrochemical Methods in Archaeometry, Conservation and Restoration – a review. Bulgarian e-Journal for Archaeology, 1 (2), 2012, 137–140 (in Bulg.).

213. Кулев, И. За пигментите, използвани в археологията и художеството – рецензия. Българско е-Списание за Археология, 1 (2), 2012, 135–136 (in Bulg.).

Kuleff, I. On the Pigments, Used in the Archaeology and the Art – a Review. Bulgarian e-Journal for Archaeology, 1 (2), 2012, 135–136. (in Bulg.).

214. Кулев, И. Археометрията като научна област, сп. Природа, 1 (1), 2012, 36–40 Kuleff, I. Archaeometry as Scientific Field. Priroda (Sofia), 1 (1), 2012, 36–40 (in Bulg.).

translations

Инструментален анализ, Крисчън, Г., Д. О’Рейли (ред.), превод от английски от Б. желязкова, И. Кулев, П. Бончев, Унив. изд. “Св. Кл. Охридски”, С., 1998, 1023 с. ISBN 954-07-0647-5.

Хан, О. Моят живот. От радиотория до деленето на урана, превод от немски език, съста-вителство и бележки от И. Кулев, Унив. изд. “Св. Кл. Охридски, С., 2004, 235 с., ISBN 954-07-2022-2.

Prof. Dr. Dimiter L. Tsalev, DSc, C.M.Chair of Analytical Chemistry

Faculty of Chemistry and PharmacyUniversity of Sofia “St. Kliment Ohridski”

1, J. Bourchier Blvd.1164 Sofia

26

27

LITERARY HERITAGE

PROFESSOR D.Sc. NIKOLAY TYUTYULKOV

SCIENTIFIC PUBLICATIONS: 1993–2012

1993

1. Tyutyulkov, N, S. Karabunarliev, K. Müllen, M. Baumgarten. Band Structure of Quasi One-dimmensional Polycondensed Hydrocarbons. II. Energy spectra of Ribbon Polymers Relating to Graphithe. Synthetic Methals, 53 (1993), 205

2. Baumgarten, M., K., N. Tyutyulkov, G. Madjarova. On the Nature of the Spin Exchange Interaction in Poly(m-aniline). Chem. Phys., 169, (1993) 81

3. Dietz, F., N. Tyutyulkov, M. Rabinovitz. Anti-Aromaticity and Colour of Some Classes of Organic Compounds. J. Chem. Soc., Perkin Trans. II, 157 (1993)

4. Tyutyulkov, N., F. Dietz, K. Müüllen, M. Baumgarten, S. Karabunarliev. Structure and Properties of Nonclassical Polymers, IX. Non-alternant Polymers. Theor. Chim. Acta. (Berl. ), 86 (1993), 352

5. Tyutyulkov, N., F. Dietz. Energy Gap Equation of 1-D Polyconjugated p-Systems in Hubbard Approximation. Chem. Phys., 171 (1993), 293

6. Karabunarliev, S., M. Baumgarten, N. Tyutyulkov. Tuning of the Electronic States in Conjugated Polymers. K. Müllen 13th General Conference of the Condensed Matter Division, European Physical Society & Deutsche Physikalische Geselschaft, Regensburg, March-April, 1993, S. 1815

7. Tyutyulkov, N., F. Dietz, K. Rommel, A. Schleitzer. On the Cromophore of the Ninchidrin-Amino Acid Color Reaction. Z. Naturforsch., 48b (1993), 1133

1994

8. Dietz, F., K. Müllen, M. Baumgarten, N. Tyutyulkov. Band Structure of Quasi 1-D Polycondensed p-Systems. III. Energy Spectra of Antiaromatic Polymers. Makromol. Chem. Theor. Simul., 3 (1994), 241

9. Baumgarten, M., F. Dietz, K. Müllen, N. Tyutyulkov. Energy Spectra of Infinite Phenylenes. Chem. Phys. Lett., 221 (1994), 71

ГОДИШНИК НА СОФИЙСКИЯ УНИВЕРСИТЕТ „СВ. КЛИМЕНТ ОХРИДСКИ“

ХИМИчЕСКИ ФАКУЛТЕТ

Том 104/105, 2013

ANNUAIRE DE L’UNIVERSITÉ DE SOFIA „ST. KLIMENT OHRIDSKI“

FACULTÉ DE CHIMIE

Tome 104/105, 2013

28

10. Tyutyulkov, N., F. Dietz, J. Klein, T. Schmalz. The Band Gap of Alternant 1D π-Systems. Int. J. Quant. Chem., 51 (1994), 173

11. Karabunarliev, S., M. Baumgarten, N. Tyutyulkov, K. Müllen Bond Alternation and Electronic Structure of Poly(perinaphtalene). Chem. Phys., 179 (1994), 421

12. Madjarova, G., M. Baumgarten, K. Müllen, N. Tyutyulkov Structure, Energy Spectra and Magnetic Properties of Poly(meta-aniline). Makromol. Chem. Theor. Simul., 3 (1994), 803

13. Tyutyulkov, N., F. Dietz, K. Müllen, M. Baumgarten, S. KarabunarlievEnergy. Spectra and Magnetic Properties of Radialenes, Dendralenes and their Polyradical Ions. A New Class of Polaronic High-Spin p-Systems. Chem. Phys, 189 (1994), 83

14. Kreynschmidt, M., M. Baumgarten, N. Tyutyulkov, K. Müllen. 2,2’-Bipyrenyl und para-Terpyrenyl - ein neuer Typ elektronisch Entkoppelter Oligoarylene. Angew. Chem, 106 (1994), 2062

15. Karabunarliev, S., M. Baumgarten, N. Tyutyulkov, K. Müllen. Structure and Optical Absorption of Oligo (p- and m-Phenylene-vinylenes) and their Radical-Anions: A Comparative Theoretical Study. J. Phys. Chem., 98 (1994), 11892

1995

16. Müllen, K., M. Baumgartern, N. Tyutyulkov, F. Dietz. Structure and Properties of Non-Classical Polymers. X. Heteroatomoc Polymers with Degenerate Half-Filled Band. Molecular Engineering, 4, (1995), 353

17. Dietz, F., M. Rabinovitz, A. Tadjer, N. Tyutyulkov. Structure and Energy Spectra of Molecules Containing Anti- aromatic Ring Systems. Part 2. Energy Spectra and Stabilization of Systems Containing Anti-Aromatic Cyclo-heptatrienide Anion. J. Chem. Soc., Perkin 2, (1995), 735

18. Tyutyulkov, N., F. Dietz, M. Baumgarten, K. Müllen Energy Gap of Alternant Carbon Nanotubes. Makromol. Chem. Theor. Simul, 4 (1995), 991

19. Dietz, F., M. Rabinovitz, A. Tadjer, N. Tyutyulkov. Structure and Energy Spectra of Molecules Containing Anti-Aromatic Ring Systems. Part 3. Anti-Aromaticity of Ion Radicals of Benzene and Substituted Benzenes. Z. Physikal. Chem., 191 (1995), 15

20. Tyutyulkov, N., A. Tadjer, G. Madjarova. A Novel Class High-Spin Organic Polymers. Bulg. Chem. Commun, 28 (1995), 418

1996

21. Tyutyulkov, N. Molecular Design of High Spin Polymers with Ferromagnetic Coupling Among the Electrons. Two Types of 1-D π-Conjugated Polymers: Charge Transfer and Polaronic Ferromagnets. Plenar Vortrag auf 8-ISNA, Braunschweig, Juli, 1995. Pure & Appl. Chem, 68 (1996), 345

22. Reisch, H., U. Weisler, U. Scherf, N. Tyutyulkov. Poly(indenofluorene), a Novel Low Band Gap Polyhydrocarbon. Macromolecules, 29 (1996), 8204

23. A New Class 1D Polycondenzed p-Systems. K. Müllen, U. Müller, N. Tyutyulkov, F. Dietz Polycyclic Aromatic Compounds, 8 (1996), 18

1997

24. Tyutyulkov, N., F. Dietz, G. Madjarova. Nature of the Magnetic Interaction in Organic Radical Crystals. Plenary Lecture at the V-th International Conference on Molecular-Based Magnets, July, 1996, Osaka, Japan

29

25. Tyutyulkov, N., F. Dietz, G. Madjarova. Nature of the Magnetic Interaction in Organic Radical Crystals. Mol. Cryst. Liq. Cryst., 305 (1997), 249

26. Zhang, J., K. Okada, N. Tyutyulkov. Intramolecular Exchange Interaction in Xylylene Type Biradicals. M. Baumgarten, Poster at the V-th International Conference on Molecular-Based Magnets, July, 1996, Osaka, Japan. Mol. Cryst. Liq. Cryst, 305 (1997), 509

27. Beust, R., A. Schleitzer, F. Dietz, N. Tyutyulkov. On the Ground State Multiplicity of Donor-Acceptor Cyclopentadienyl Cations. Poster at the V-th International Conference on Molecular-Based Magnets, July, 1996, Osaka, Japan. Mol. Cryst. Liq. Cryst., 36 (1997), 133

28. Beust, R., A. Schleitzer, H. Vogel, N. Tyutyulkov, F. Dietz. On the Ground State Multiplicity of Donor-Acceptor Cyclopentadienyl Cations. Croatica Chim. Acta, 70 (1997), 787

29. Vogel, H., A. Schleitzer, F. Dietz, N. Tyutyulkov Structure and Ground State Multiplicity of Polyradical Ions of Homo-and Heteronuclear Dendralenes. Poster at the V-th International Conference on Molecular-Based Magnets, July, 1996, Osaka, Japan. Mol. Cryst. Liq. Cryst., 306 (1997), 495

30. Dietz, F., N. Tyutyulkov, K. Lüders, A. Christen. Nature of the Magnetic Interaction in 1-D Würster’s Radical Crystals. Chem. Phys., 218 (1997), 43

31. Tyutyulkov, N., F. Dietz, K. Müllen, M. Baumgarten. Structure and Energy Spectra of a Two-Dimensional Dielectric Carbon Allotrope. Chem. Phys. Lett., 272 (1997), 111

32. Tyutyulkov, N., F. Dietz, K. Müllen, Ch. Kübel. Structure and Properties of Non-Classical Polymers. XI. Heteroatomic Analogues of Poly(1,3-phenylenemethylene)s. Bull. Chem. Soc. Japan, 70 (1997)

33. Tyutyulkov, N., F. Dietz, G. Olbrich. On Alternant Molecules with Identical Energy Spectra. Isospectral Molecules. Int. J. Quant. Chem., 62 (1997), 167

34. Tyutyulkov, N., A. Tadjer. Structure and Energy Spectrum of One-Dimensional Polymers. Annuaire de L’Universite de Sofia “St. Kliment Ohridski”, Faculte de Chemi, 88 (1997), 47

35. Tyutyulkov, N., G. Madjarova, A. Tadjer. Organic Polymers with Indirect Magnetic Interaction. Annuaire de L’Universite de Sofia “St. Kliment Ohridski”, Faculte de Chemi, 89 (1997), 195

1998

36. Tyutyulkov, N., G. Madjarova, F. Dietz, I. Karamantcheva. Structure and Energy Spectra of Nonalternant Analogues of the Triphenyl-methyl Radical and its Ions. Dyes and Pygments, 36, (1998), 205

37. Tyutyulkov, N., A. Tadjer, G. Madjarova. Energy Spectra of the [N]-Phenylenes. Annuaire de L’Universite de Sofia “St. Kliment Ohridski”, Faculte de Chemi, 90 (1998), 21

38. Tyutyulkov, N., A. Tadjer, G. Madjarova, F. Dietz. Vinylidene - A New Ferromagnetic Coupler in One-Dimensional High-Spin Polymers. Bulg. Chem. Commun., 29 (1997), 683

39. Dietz, F., N. Tyutyulkov, M. Baumgarten. Nature of Magnetic Interaction in Organic Radical Cristals. 3. Galvinoxyl Radicals in 1-D Crystals. J. Phys. Chem., B102 (1998), 3912

40. Baumgarten, M., N. Tyutyulkov. Nonclassical Conducting Polymers: New Approaches to Organic Metals. Chemistry Europ. J., 4 (1998), 987

41. Tyutyulkov, N., G. Madjarova, F. Dietz, K. Müllen. Is 2-D Graphite an Ultimate Large Hydrocarbon ? I. Energy Spectra of Giant Polycyclic Aromatic Hydrocarbons. J. Phys. Chem., B102 (1998), 10183

42. Tyutyulkov, N., G. Madjarova, F. Dietz, K. Müllen. Energy Spectra of Gaint Polybenzenoid Hydrocarbons. Bulgarian Chemistry and Industry, 69 (1998), 113

30

1999

43. Tyutyulkov, N., F. Dietz. Band Theory of Exchange Effects in Organic Open-Shell Systems. in: Magnetic Properties of Organic Materials, Lahti, P. M., ed., Marcel Dekker, Inc., 1999, Chapt. 18, pp. 361-376.

44. Dietz, F., A. Schleizer, H. Vogel, N. Tyutyulkov. 1,1-Vinylidene and 1,2-Vinylene as Ferromagnetic Coupling Units. Zeitschrift Phys. Chem., 209 (1999), 67

45. Beust, R., N. Tyutyulkov, M. Rabinovitz, F. Dietz. Radical-substituted Allenees as High-spin Species and Subunits of Organic Ferromagnets. Chem. Phys. 240 (1999), 141

46. Dietz, F., N. Tyutyulkov, S. Karabunarliev, J. Hrystov, K. Müllen. Structure and Energy Spectra of a Class Polybenzenoid Clar’s Hydrocarbons and 1-D Polymers. Polycyclic Aromatic Compounds, 13 (1999) 241.

47. Dietz, F., N. Tyutyulkov. Structure and Properties of Non-Classical Polymers. XII. A New Family of High-spin polycyclic 1-D Systems. Chem. Phys., 246 (1999), 255

2000

48. Baumgarten, M., F. Dietz, N. Tyutyulkov. Structure and Properties of Non-Classical Polymers. XIII. 1-D High-spin Polymers with out of chain Radical Sites. Phys. Chem. Chem. Phys., 2 (2000), 387

49. Dietz, F., N. Tyutyulkov, G. Madjarova, K. Müllen. Is 2-D Graphite an Ultimate Large Hydrocarbon? II. Structure and Energy Spectra of Polycyclic Aromatic Hydrocarbons with Defects. J. Phys. Chem., B104 (2000), 1746

50. Dietz, F., N. Tyutyulkov, S. Karabunarliev, J. Hrystov, K. Müllen. Structure snd Energy Spectra of a Class Polybenzenoid Clar’s Hydrocarbons and 1-D Polymers Polycyclic Aromatic Compounds., 13 (1999), 241.

51. Baumgarten, M., F. Dietz, N. Tyutyulkov. Structure and Properties of Non-Classical Polymers. XIII 1-D High-spin Polymers with out of chain Radical Sites. Phys. Chem. Chem. Phys., 2 (2000), 387

52. Tyutyulkov, N., F. Dietz, G. Madjarova, K. Müllen. Nature of the Magnetic Interaction in Organic Radical Crystals. IV. Magnetic Interaction in Mixed Molecular Radical Crystals. J. Phys. Chem. B 104 (2000), 7320

53. Tyutyulkov, N., F. Dietz, K. Müllen. Magnetic Exchange Interaction between π-Electron Radicals Adsorbed on Graphites. Chem. Phys., 255 (2000), 223

54. Tyutyulkov, N., F. Dietz, K.