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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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Nematerialni aktivi i ikonomičeski rastež
Rangelova, Rosica - In: Ikonomičeski izsledvanija 12 (2003) 2, pp. 45-71
Persistent link: https://www.econbiz.de/10002174316
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Ikonomičesko raznoobrazie i pazarna struktura
Dimitrov, Dinko - In: Ikonomičeska misăl 37 (1992) 5, pp. 77-85
Persistent link: https://www.econbiz.de/10001161310
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Novovăvedenie : za i protiv
Šapkarev, Petăr K.; Dimitrova, Paraskeva - 1995
Persistent link: https://www.econbiz.de/10000965506