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System of models for assessment of long term development of the energy complex in Bulgaria
Tsvetanov, P. - In: Modeling of large scale energy systems : proceedings of …, (pp. 195-205). 1981
Persistent link: https://www.econbiz.de/10003696088
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Osnovnye tendencii formirovanija territorial'noj struktury promys̆lennosti Narodnoj Republiki Bolgarii
Valev, É B. - 1971
Persistent link: https://www.econbiz.de/10003698795
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Za qroljata na paručno-kreditnata sistema v NR Bulgarija
Vel'ov, Michail - 1959
Persistent link: https://www.econbiz.de/10003699675
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Bulgaria
Vogel, Heinrich - In: The New economic systems of Eastern Europe, (pp. 199-222). 1975
Persistent link: https://www.econbiz.de/10003700451
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Rekonstruktion der Kohlentagebaue und ihre wirtschaftliche Effektivität nach dem Beispiel des Ostmaritza-Braunkohlenvorkommens
Vylev, G. S. - In: Bergbau und Rohstoffe : Schlüssel zum Fortschritt ; …, (pp. 1-11). 1976
Persistent link: https://www.econbiz.de/10003702255
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A note on the modelling of a Bulgarian agro-industrial complex with special reference to appropriate objectives
Wiedemann, Paul - In: Oxford agrarian studies 3 (1974) 2, pp. 124-132
Persistent link: https://www.econbiz.de/10003706813
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Sravnenie nekotorych va°znejšioh pokazatelej vengerskogo i bolgarskogo navodnych chozjajstv
Rácz, A. - In: Acta oeconomica : periodical of the Hungarian Academy … 5 (1970) 1/2, pp. 107-124
Persistent link: https://www.econbiz.de/10003657947