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by Helsper, Werner, Ullrich, Heiner, Stelmaszyk, Bernhard, Höblich, Davina
Published 2007
Published 2007
VS Verlag für Sozialwissenschaften
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by Graßhoff, Gunther, Ullrich, Heiner, Binz, Christine, Pfaff, Annika
Published 2013
Published 2013
Springer Fachmedien Wiesbaden