World Money Fair (WMF) Berlin February 1-3, 2011 Royal Canadian Mint/Signoptic Technologies Coin DNA Technology Presented by: Dr. Hieu C. Truong Executive.
D. Nihtianova 1, Jixue Li 2 and U. Kolb 3 1 Central Laboratory of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev Str.,
