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Patentna aktivnost i naučnoizsledovatelska i razvojna dejnost v Bălgarija
Georgieva, Rumjana - In: Ikonomičeska misăl 54 (2009) 5, pp. 26-53
Persistent link: https://www.econbiz.de/10003934694
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Visšeto obrazovanie i naukata v Bălgarija : ikonomičeski, socialni i džendăr izmerenija
Zareva, Irena; Matev, Matju Vălčev; Kirova, Alla - 2014
Persistent link: https://www.econbiz.de/10010437825
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Čelen opit : tvorčestvo, izučavane i masovo vnedrjavane
Kosev, Iskro (contributor) - 1980
Persistent link: https://www.econbiz.de/10003103228
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Bălgarija i evrointegracijata v naučnoizsledovatelskija sektor
Matev, Matju Vălčev - In: Ikonomičeska misăl 48 (2003) 1, pp. 3-20
Persistent link: https://www.econbiz.de/10001775975
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Bulgaro-italianski politiceski Otnosenija 1922/1943
Dimitrov, Ilčo - 1976
Persistent link: https://www.econbiz.de/10014392611