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Săstojanie i tendencii na klimata v Bălgarija i emisiite na parnikovi gazove ot selʹskoto stopanstvo
Nenova, Radka - 2017
Persistent link: https://www.econbiz.de/10011869401
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Văzobnovjaemi energijni iztočnici
Kiskinov, Nikolaj; Кискинов, Николай - 2012
Persistent link: https://www.econbiz.de/10010238059
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Naučnata politika ba Bălgarija v oblastta na VEI prez vtorata polovina na XX i načaloto na XXI vek
Damjanov, Plamen - 2020
Persistent link: https://www.econbiz.de/10012434567
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Ekologija i ikonomika
Božinov, Todor B. (contributor) - 1990 - Izd. 1
Persistent link: https://www.econbiz.de/10000876612
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Ekologija i upravlenie
Božinov, Todor B. - 1989 - 1. izd
Persistent link: https://www.econbiz.de/10000792693
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Ekologičnite prioriteti i tjachnata rolja v regionalnata ikonomika
Čkorev, Nikolaj - In: Ikonomičeska misăl 40 (1995) 7, pp. 13-24
Persistent link: https://www.econbiz.de/10001203746
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Ustojčivo razvitie i mnogoobrazie v Bălgarija
Bakărdžieva, Radostina (contributor) - 2010
Persistent link: https://www.econbiz.de/10008647490
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Regionalni problemi na Republika Bălgarija
Terzijska, Diana; Lozanov, Emil - 2006
Persistent link: https://www.econbiz.de/10003431363
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Impacts of climate change on winter tourism in Borovets
Mishev, Plamen; Kalojanov, Todor; Močurova, Milkana - In: Ikonomičeski izsledvanija 19 (2010) 2, pp. 98-126
Persistent link: https://www.econbiz.de/10009008919