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Analiz na stopanskata dejnost i razkrivane na rezervi
Kalinov, Stefan - 1981
Persistent link: https://www.econbiz.de/10002178079
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Ikonomiko-matematičeski modeli i metodi za upravlenie na materialnite resursi
Bonev, Kostadin - 1978
Persistent link: https://www.econbiz.de/10001932046
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Izoplzvane na ikonomiko-matematičeskite modeli v upravlenskata praktika
Bakǔrdžieva, Milka - In: Narodnostopanski archiv 36 (1983) 3, pp. 337-344
Persistent link: https://www.econbiz.de/10001849596
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Ikonomika i planirane na energijnoto stopanstvo v promišlenostta : metodičeski ukazanija
Rajkov, Georgi I. - 1989
Persistent link: https://www.econbiz.de/10000897332
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Gorivno-energijnite resursi - globalen problem na săvremennostta
Dunov, Ivan - 1985
Persistent link: https://www.econbiz.de/10000716692
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Energetika i intenzifikacija
Todoriev, Nikola - 1984
Persistent link: https://www.econbiz.de/10002936556
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Surovinno-energijnite resursi i ikonomičeskata integracija
Pavlov, Petko - 1978
Persistent link: https://www.econbiz.de/10002618956
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Intenzifikacija i materialoemkost na obštestvenoto proizvodstvo
Pechlivanov, Vasil - 1983
Persistent link: https://www.econbiz.de/10002625448
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Profkomitetŭt v borbata za ikonomii︠a︡ na energii︠a︡ i goriva
Kutov, Petŭr - 1980
Persistent link: https://www.econbiz.de/10001429905