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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
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Energijnata sigurnost na Bălgarija
Željazkov, Ivan; Trifonov, Todor - 2012
Persistent link: https://www.econbiz.de/10009765975
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Upravlenie na energijnija sektor i energijna (ne)sigurnost v Bălgarija
2014
Persistent link: https://www.econbiz.de/10010432399
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Energijnata kriza v Bălgarija : pătišta i sredstva za preodoljavaneto j
Dunov, Ivan - In: Ikonomičeska misăl 36 (1991) 7, pp. 3-12
Persistent link: https://www.econbiz.de/10001165192
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Energijnata bednost v Băalgarija : izmenija i faktori
Peneva, Teodora - 2022
Persistent link: https://www.econbiz.de/10014462473
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Makedonija : istorija i političeska sădba
Petrov, Petăr (contributor) - 1994 - Izd. 1
Persistent link: https://www.econbiz.de/10000894866
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Ikonomika na Bălgarija
Popov, Nikola G. (contributor) - 1989
Persistent link: https://www.econbiz.de/10000830902
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Stopanska istorija
Chadžinikolov, Veselin Dimitrov (contributor) - 1987 - 4., osnovno preraboteno i săkrateno izd
Persistent link: https://www.econbiz.de/10000763254
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Frenskoto ikonomičesko pronikvane v Bălgarija : ot osvoboždenieto do părvata svetovna vojna (1878 - 1914)
Damjanov, Simeon - 1971
Persistent link: https://www.econbiz.de/10000608455
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Statističeski spravočnik / Nacionalen Statističeski Institut
Nacionalen Statističeski Institut <Sofia> - Sofija; teils: Sofija : Statističesko Izdat. i Pečatnica - 1992 -
Persistent link: https://www.econbiz.de/10000503075