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The Rumanian refinery project : the negotiation, structure, and finance of a major American corporate venture in Eastern Europe
Venema, Maynard P., (1968)
The current status of oil refining industry in Romania
Bulearcă, Marius, (2021)
Vertical integration by oil exporting countries
Siebert, Horst, (1985)
Analiza factorilor de creştere a productivităţii muncii în extracţia cărbunelui
Protopopescu, V. V., (1968)
Notwendigkeit der Bauernversicherung
Protopopescu, V. V., (1943)
Controlul activităţii economice a întreprinderii şi evaluarea eficienţei conducerii