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by Schmidt, Siegfried J., Zobel, Reinhard, Popp, Franz, Viehoff, Reinhold
Published 1983
Published 1983
Vieweg+Teubner Verlag
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by Rest, Walter, Brose, Karl, Heitkämper, Peter, Neumann, Siegfried
Published 1977
Published 1977
VS Verlag für Sozialwissenschaften