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Săstojanie i tendencii v razvitieto na tărgovskata marka v R Bălgarija
Stanev, Vălkan - In: Izvestija : spisanie na Ikonomičeski Universitet, Varna 1994 (1994) 2, pp. 29-40
Persistent link: https://www.econbiz.de/10001191312
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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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Patentite za izobretenija kato indikator za tehnologičnoto razvitie na oblast himija i metalurgija v Bălgarija prez perioda 2001 - 2010 g.
Georgieva, Rumjana - In: Ikonomičeski alternativi (2011) 4, pp. 40-71
Persistent link: https://www.econbiz.de/10009488495
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Materialno-techničeska baza na naukata
1994
Persistent link: https://www.econbiz.de/10000997827