Hits 1-10 within 13 documents
Hits 1-10 within 13 documents
Author(s): Liebig, Stefan.- 2007. 93p.
Author(s): Witte, Erich H..- 2001. 24p.
Author(s): Bielefeldt, Heiner.- 2008. 35p.
Author(s): Bodansky, Alexander N.; Witte, Erich H..- 2008. 29p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1986. 123p.
Author(s): Kääriäinen, Kimmo.- 1995. 34p.
Author(s): Kääriäinen, Kimmo.- 1997. 41p.
Author(s): Steuten, Ulrich.- 2005. 44p.
Author(s): Schaller, Christian; Rudolf, Peter.- 2012. 35p.
Author(s): Starke, Kurt; Siegel, Ulrike; Förster, Peter.- 1974. 237p.