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1
by Ridder, Hans-Gerd
Published 2016
Edition Rainer Hampp
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2
by Ridder, Hans-Gerd
Published 2020
Rainer Hampp Verlag
Other Authors: “...Ridder, Hans-Gerd...”
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4
by Bartölke, Klaus, Henning, Heiner, Jorzik, Herbert, Ridder, Hans-Gerd
Published 1991
VS Verlag für Sozialwissenschaften