Hits 1-4 within 4 documents
Hits 1-4 within 4 documents
Author(s): Gerth, Werner; Kasek, Leonhard; Thiele, Gisela; Fischer, Evelyne; Spitzky, N..- 1984. 43p.
Author(s): Gerth, Werner; Kaftan, Burkhard.- 1980. 18p.
Author(s): Gerth, Werner; Bertram, Barbara; Kaftan, Burkhard; Ronneberg, H..- 1975. 81p.