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Umweltorientierte Entwicklungspolitik
Hein, Wolfgang (ed.) - 1992 - 2., erw. Aufl.
Persistent link: https://www.econbiz.de/10000335153
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Tourism and sustainable development
Hein, Wolfgang (ed.) - 1997
Persistent link: https://www.econbiz.de/10000646816
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Debates on issues of our common future : [eight symposia of the Volkswagen Foundation]
Krull, Wilhelm (ed.); Schoop, Helen (translator);  … - 2000 - 1. ed.
Persistent link: https://www.econbiz.de/10014378799
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Zukunftsstreit
Krull, Wilhelm (ed.); Opolka, Uwe (translator) - 2000 - 1. Aufl.
Persistent link: https://www.econbiz.de/10014007878