Hits 91-100 within 192 documents
Hits 91-100 within 192 documents
Author(s): Gerth, Werner; Kaftan, Burkhard; Netzker, Wolfgang.- 1976. 80p.
Author(s): Ronneberg, Heinz.- 1977. 22p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 39p.
Author(s): Gerth, Werner.- 1975. 10p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1975. 10p.
Author(s): Geier, Wolfgang; Ulbrich, Hans-Joachim.- 1976. 71p.
Author(s): Kaftan, Burkhard.- 1977. 28p.
Author(s): Förster, Peter.- 1976. 62p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1976. 24p.
Author(s): Starke, Kurt; Kasek, Leonhard; Hoffmann, Achim; Neise, Ulrich; Schauer, Heinz.- 1977. 33p.