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Naučno-techničeskijat progres v životnovodstovoto i planovoto cenoobrazuvane
Angarski, Krasimir - In: Finansi i kredit : spisanie na Ministerstvoto na … 32 (1982) 10, pp. 21-32
Persistent link: https://www.econbiz.de/10001837891
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Planovo regulirane na otnošenieto meždu kačestvoto i cenite v životnovǔdstvoto
Angarski, Krasimir - In: Planovo stopanstvo i statistika : organ na Dăržavnija … 39 (1984) 9, pp. 33-43
Persistent link: https://www.econbiz.de/10001837919
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Ikonomičeski polzi ot opazvaneto na bioraznoobrazieto (na primera na bălgarskite dunavski ostrovi)
Dančev, Aleksi - In: Ikonomičeska misăl 47 (2002) 4, pp. 41-66
Persistent link: https://www.econbiz.de/10001691793
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Biogeografija i priroden kapital na Bălgarija
Asenov, Asen - 2021
Persistent link: https://www.econbiz.de/10012608068