Hits 1-2 within 2 documents
Hits 1-2 within 2 documents
Author(s): Lindner, Bernhard; Kuhnke, Ralf; Schauer, Heinz; Schmidt, Lutz; Ulbrich, Klaus; Ulrich, Gisela.- 1982. 32p.
Author(s): Gerth, Werner; Kasek, Leonhard; Ulrich, Gisela; Thiele, Gisela; Fischer, Evelyne; Ulbrich, Klaus.- 1987. 45p.