Hits 1-5 within 5 documents
Hits 1-5 within 5 documents
Author(s): Dennhardt, Rudolf; Lange, Günter; Schubarth, Wilfried.- 1990. 55p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1988. 68p.
Author(s): Wiedemann, Dieter.- 1983. 17p.
Author(s): Schubarth, Wilfried.- 1990. 77p.