Sergey Tzarnakliyski Budapest, September 17th, 2013 Danube Commission, Budapest Regional Arrangement on the Radiocommunication Service for Inland Waterways.
Sergey Tzarnakliyski Belgrade, December 4, 2013 Danube Commission, Budapest Selected Activities of the Danube Commission Steps towards sustainable Mobility.
Sergey Tzarnakliyski Budapest, September 17th, 2013 Danube Commission, Budapest
