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Transportnijat pazar v Bălgarija: săstojanie i perspektivi za ravitie
Nikolova, Christina Lazarova - 2010
Persistent link: https://www.econbiz.de/10009237168
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Elektroenergetikata v Bălgarija
Nabatov, Nikita (contributor) - 2015
Persistent link: https://www.econbiz.de/10011400333
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Văzobnovjaemi energijni iztočnici
Kiskinov, Nikolaj; Кискинов, Николай - 2012
Persistent link: https://www.econbiz.de/10010238059
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Razvitie na văzobnovjaemite energjni iztočnici v Bălgarija
Grigorova, Veselina - In: Ikonomičeska misăl 55 (2010) 4, pp. 50-65
Persistent link: https://www.econbiz.de/10008699325
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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