Hits 1-4 within 4 documents
Hits 1-4 within 4 documents
Author(s): Gerth, Werner; Ulbrich, Klaus.- 1982. 18p.
Author(s): Gerth, Werner; Kaftan, Burkhard.- 1980. 18p.
Author(s): Gerth, Werner; Kaftan, Burkhard; Netzker, Wolfgang.- 1975. 21p.
Author(s): Gerth, Werner; Burkhardt, Erwin; Bernard, Günter; Bertram, Barbara; Bonus, Hans; Heinrichs, W.; Höpfner, E..- 1970. 62p.