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by Horn, Hans-Hermann, Trapp, Axel, Roth, Manfred, Gonsior, Bernhard
Published 1981
Published 1981
VS Verlag für Sozialwissenschaften
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by Roth, Manfred, Raith, Burkhard, Uhlhorn, Christian D., Gonsior, Bernhard
Published 1977
Published 1977
VS Verlag für Sozialwissenschaften