Hits 1-3 within 3 documents
Hits 1-3 within 3 documents
Author(s): Kirschner, Hans-Peter.- 1986. 19,2p.
Author(s): Brückner, Erika; Kirschner, Hans-Peter; Porst, Rolf; Prüfer, Peter; Schmidt, Peter.- 1982. 40p.
Author(s): Hagstotz, Werner; Kirschner, Hans-Peter; Porst, Rolf; Prüfer, Peter.- 1983. 37p.