Hits 51-55 within 55 documents
Hits 51-55 within 55 documents
Author(s): Wiedemann, Dieter.- 1985. 26p.
Author(s): Stiehler, Hans-Jörg.- 1981. 31p.
Author(s): Wiedemann, Dieter; Karig, Ute.- 1987. 9p.
Author(s): Ulrich, Gisela.- 1982. 15p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1990. 36p.