Hits 1-10 within 17 documents
Hits 1-10 within 17 documents
Author(s): Friedrich, Walter.- 1974. 27p.
Author(s): Mehlhorn, Hans-Georg.- 1972. 13p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1973. 19p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1983. 14p.
Author(s): Voß, Peter.- 1980. 6p.
Author(s): Gerth, Werner; Kaftan, Burkhard.- 1980. 18p.
Author(s): Gerth, Werner.- 1975. 10p.
Author(s): Dennhardt, Rudolf.- 1985. 40p.
Author(s): Netzker, Wolfgang; Kaftan, Burkhard.- 1977. 16p.