Hits 1-4 within 4 documents
Hits 1-4 within 4 documents
Author(s): Gerth, Werner.- 1980. 11p.
Author(s): Gerth, Werner; Kasek, Leonhard; Pinther, Arnold; Starke, Kurt; Süße, Heinz.- 1985. 24p.
Author(s): Gerth, Werner.- 1980. 28p.
Author(s): Bertram, Barbara; Gerth, Werner; Netzker, Wolfgang.- 1980. 38p.