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by Riese, Werner de, Allhoff, Ernst, Schuth, Julius, Jonas, Udo
Published 1991
Published 1991
Springer Berlin Heidelberg
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by Opitz, Herwart, Hoffmeister, Bernhard, Sulzer, Gerd, Weigel, Udo
Published 1971
Published 1971
VS Verlag für Sozialwissenschaften