Hits 1-10 within 11 documents
Hits 1-10 within 11 documents
Author(s): Gerth, Werner; Ulbrich, Klaus.- 1982. 18p.
Author(s): Spitzky, N..- 1985. 17p.
Author(s): Kasek, Leonhard.- 1985. 21p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1983. 15p.
Author(s): Thiele, Gisela.- 1987. 15p.
Author(s): Schmidt, Helfried.- 1980. 13p.
Author(s): Gerth, Werner; Kaftan, Burkhard.- 1980. 18p.
Author(s): Kaftan, Burkhard.- 1983. 16p.
Author(s): Kasek, Leonhard.- 1985. 15p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1983. 37p.