1
by Gernhardt, Robert published: Zürich: Haffmans, 1988

2
by Gernhardt, Robert , Zehrer, Klaus Cäsar published: Frankfurt am Main: Fischer, 2013

Other Authors: ...Gernhardt, Robert...
3
by Gernhardt, Robert , Führe, Uli published: Boppard: Fidula, 19XX-

Other Authors: ...Gernhardt, Robert...