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by Sackmann, Reinhold, Weymann, Ansgar, Wingens, Matthias
Published 2000
Published 2000
VS Verlag für Sozialwissenschaften
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by Abels, Heinz, Honig, Michael-Sebastian, Saake, Irmhild, Weymann, Ansgar
Published 2008
Published 2008
VS Verlag für Sozialwissenschaften