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Bielefeld: W. Bertelsmann Verlag, 2009
Euler, Dieter
[Author];
Sloane, Peter F. E.
[Author];
Collenberg, Michèle
[Author];
Daniel, Desiree
[Author];
Janssen, Elmar A.
[Author];
Jenert, Tobias
[Author];
Meier, Karin
[Author];
Menke, Ilka
[Author];
Schröder, Helmut
[Author]