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Surovinno-energijnite resursi i ikonomičeskata integracija
Pavlov, Petko - 1978
Persistent link: https://www.econbiz.de/10002618956
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Surovinno-energijnite resursi i ikonomičeskijat rastež
Pavlov, Petko - In: Planovo stopanstvo : nositel na orden "9 Septembri 1984 … 39 (1984) 9, pp. 11-20
Persistent link: https://www.econbiz.de/10002618968
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Intenzifikacija i materialoemkost na obštestvenoto proizvodstvo
Pechlivanov, Vasil - 1983
Persistent link: https://www.econbiz.de/10002625448
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Materialno-techničeskata baza na socialističeskoto obštestvo
Peovski, Rad - 1975
Persistent link: https://www.econbiz.de/10002630392
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Po problema za surovinnija toplivnoenergetičen potencial na Bǔlgarija, svǔrzan s izkopaemite vǔglišta, razkriti v zemnite nedra na stranata
Jovčev, Jovčo S. - In: Spisanie na Bălgarskata Akademija na Naukite 26 (1980) 4, pp. 31-45
Persistent link: https://www.econbiz.de/10002038786
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Borbata za ikonomii na surovini i materiali
Spasov, Spas; Dočev, Ivan - 1977
Persistent link: https://www.econbiz.de/10002844961
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Bulgaria : country-level key data and information related to nonfood, non-energy raw materials
Nita, Viorel; Garbossa, Elisa; Ciută, Theodor; … - Europäische Kommission / Gemeinsame Forschungsstelle - 2020
Persistent link: https://www.econbiz.de/10012385197
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Papua New Guinea: a 20/20 vision
Temu, Ila (contributor) - 1997
Persistent link: https://www.econbiz.de/10000960750