Hits 1-10 within 15 documents
Hits 1-10 within 15 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1982. 37p.
Author(s): Mehlhorn, Hans-Georg.- 1984. 15p.
Author(s): Mehlhorn, Hans-Georg.- 1984. 42p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1986. 123p.
Author(s): Mehlhorn, Hans-Georg.- 1980. 45p.
Author(s): Mehlhorn, Hans-Georg.- 1983. 9p.
Author(s): Spitzky, Norbert.- 1987. 31p.
Author(s): Buchmann, A..- 1980. 25p.
Author(s): Mehlhorn, Hans-Georg.- 1983. 74p.
Author(s): Mehlhorn, Hans-Georg.- 1985. 31p.