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Neft i gaz
Jovčev, Jovčo Sm.; Baluchovski, N. F. - 1961
Persistent link: https://www.econbiz.de/10000595581
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Osnovni nasoki na razvitieto na neftenata promišlenost v NR Bŭlgarija
Petrovski, Bonju - 1962
Persistent link: https://www.econbiz.de/10002271384
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Globalizacija i neftegazovyj biznes : faktor nefti i gaza v Kaspijskom i Balkanskom geopolitičeskom uzle
Zlatev, Valentin V. - 2001
Persistent link: https://www.econbiz.de/10002139016
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Klimat i mikroklimat na Sofija
Blŭskova, Donka (contributor) - 1983
Persistent link: https://www.econbiz.de/10000344509
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Ekologija i obštestvo
Kŭrov, Asen - 1980 - 1. izd
Persistent link: https://www.econbiz.de/10002313170
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Vǔzdejstvie na ekologičeskata kriza vǔrchu kapitalističeskata ikonomika
Cekin, Georgi - In: Ikonomičeska misăl 30 (1985) 2, pp. 88-96
Persistent link: https://www.econbiz.de/10001988073
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Multiplikacionen efekt ot meroprijatijata za opazvane na okolnata sreda vǔv Varnenski okrǔg
Andreev, Adrian V. - In: Izvestija / Visš Institut za Narodno Stopanstvo … (1984) 1, pp. 51-61
Persistent link: https://www.econbiz.de/10001840444
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Privatizacija i ekologično ustojčivo ikonomičesko ravnovesie
Vaklinova, Margarita - In: Ikonomičeska misăl 39 (1994) 1, pp. 43-52
Persistent link: https://www.econbiz.de/10001165005
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Sbornik materiali ot Dvustrannata Bălgaro-Rumănska Konferencija "Naučni Problemi na Reka Dunav" : 4 - 7 noemvri 1983, Varna ; 7 - 10 noemvri 1983, Tulča
Zachariev, Ivan (contributor) - Bilateral Bulgarian Romanian Conference Scientific … - 1985
Persistent link: https://www.econbiz.de/10014385403