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المساهمون: Stoehr, Christine G., Nolte, Elke, Wieland, Wolf F., Hofstaedter, Ferdinand, Hartmann, Arndt, Wach, Sven, Stoehr, Robert
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المؤلفون: Wißmüller, Esther, Wrapper, Esther
المساهمون: Steinfelder, Hans Jürgen, Virsik-köpp, Patricia, Poser, Wolfgang