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Hits 1-4 within 4 documents
Hits 1-4 within 4 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1981. 19p.
Author(s): Stiehler, Hans-Jörg; Wiedemann, Dieter.- 1981. 10p.
Author(s): Wiedemann, Dieter.- 1981. 42p.
Author(s): Stiehler, Hans-Jörg.- 1981. 31p.