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A European view of competition and control in a multimedia society
Schäfer, Helmet - In: Video Media Competition : regulation, economics, and …, (pp. 405-415). 1985
Persistent link: https://www.econbiz.de/10014551264
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Die Europäische Union und der Friedensprozeß im Nahen Osten : sicherheitspolitische Chancen und Herausforderungen
Schäfer, Helmut (contributor); Hetzke, Ekkehard (contributor) - 1996
Persistent link: https://www.econbiz.de/10000936122
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Analysis of the factors influencing energy consumption in industry : a revised method
Reitler, W.; Rudolph, M.; Schaefer, H. - In: Energy economics 9 (1987) 3, pp. 145-148
Persistent link: https://www.econbiz.de/10003659442