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by Stein, Herbert, Stein, Wolfgang, Hobe, Siegfried
Published 1969
Published 1969
VS Verlag für Sozialwissenschaften
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by Valk, Giselher, Stein, Wolfgang, Berndt, Hans-Joachim, Bossmann, Adelgunde
Published 1979
Published 1979
VS Verlag für Sozialwissenschaften