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by Opitz, Herwart, Feltkamp, Konrad, Rademacher, Johannes, Breidenbach, Gerhard
Published 1968
Published 1968
VS Verlag für Sozialwissenschaften
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by Opitz, Herwart, Derichs, Josef, Meyringer, Volker, Hofmann, Walter
Published 1967
Published 1967
VS Verlag für Sozialwissenschaften
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by Opitz, Herwart, Dregger, Ernst Ulrich, Geiger, Günther, Rehling, Ernst
Published 1967
Published 1967
VS Verlag für Sozialwissenschaften
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by Opitz, Herwart, Mussenbrock, Albert, Thämer, Reinhard, Ziegler, Karl
Published 1966
Published 1966
VS Verlag für Sozialwissenschaften