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International energy outlook ...
(2017)
World energy outlook
(1982)
Electricity in IEA countries : issues and outlook
(1985)
Trade strategy towards the third world
Steeg, Helga, (1973)
Energy policies of Romania : 1993 survey
Steeg, Helga, (1993)
Energiesicherheit im globalen Kontext : ein Bericht an die Trilaterale Kommission
Martin, William F., (1997)