Hits 1-3 within 3 documents
Hits 1-3 within 3 documents
Author(s): Nau, Anke; Porst, Rolf.- 1992. 129p.
Author(s): Brückner, Erika; Kirschner, Hans-Peter; Porst, Rolf; Prüfer, Peter; Schmidt, Peter.- 1982. 40p.
Author(s): Porst, Rolf; Prüfer, Peter; Wiedenbeck, Michael; Zeifang, Klaus.- 1985. 54,2p.