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Hits 1-5 within 5 documents
Hits 1-5 within 5 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1981. 19p.
Author(s): Wutz, Josef; Pérez, Valentin.- 2014. 128p.
Author(s): Wutz, Josef; Pérez, Valentin.- 2014. 134p.
Author(s): Stiehler, Hans-Jörg.- 1981. 31p.
Author(s): Wutz, Josef; Pérez, Valentin.- 2014. 133p.