Hits 1-2 within 2 documents
Hits 1-2 within 2 documents
Author(s): Gerth, Werner; Kasek, Leonhard; Pinther, Arnold; Starke, Kurt; Süße, Heinz.- 1985. 24p.
Author(s): Gerth, Werner; Kasek, Leonhard; Ulrich, Gisela; Thiele, Gisela; Fischer, Evelyne; Ulbrich, Klaus.- 1987. 45p.