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Wolfgang Helfritsch
(Helfritsch, Wolfgang)
Dokumentationsstudie Padagogische KJS-Forschung
by Ulrich Becker, Wolfgang Helfritsch
Hardcover, Sport und Buch Strauss, Edition Sport
, ISBN 3890011624 (3-89001-162-4)
Wolfgang Helfritsch
at LibraryThing
coauthors & alternates:
Ulrich Becker
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