Hits 1-2 within 2 documents
Hits 1-2 within 2 documents
Author(s): Brückner, Erika; Kirschner, Hans-Peter; Porst, Rolf; Prüfer, Peter; Schmidt, Peter.- 1982. 40p.
Author(s): Kirschner, Hans-Peter
Source: ZUMA Nachrichten, 8 (1984) 15. p.40-71