Hits 1-4 within 4 documents
Hits 1-4 within 4 documents
Author(s): Süße, Heinz.- 1981. 7p.
Author(s): Schmidt, H..- 1980. 37p.
Author(s): Schmidt, Helfried; Süße, Heinz.- 1983. 25p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1983. 40p.