Hits 1-3 within 3 documents
Hits 1-3 within 3 documents
Author(s): Gerth, Werner; Kaftan, Burkhard.- 1980. 18p.
Author(s): Gerth, Werner; Bertram, Barbara; Kaftan, Burkhard; Ronneberg, H..- 1975. 81p.
Author(s): Gerth, Werner; Kaftan, Burkhard; Netzker, Wolfgang.- 1976. 80p.