- Author: Wolfgang Bethge
- Language: German
- Year: 1974
- Author: Margret Sperlbaum
- Language: German
- Year: 1975
- Author: Alan Pfeffer (editor), Walter F.W. Lohnes (editor), Wolf Dieter Ortmann (editor)
- Language: German
- Year: 1984
- Author: Ingrid Hove
- Language: German
- Year: 2002
- Author: Wolfgang Bethge, Gunther M. Bonnin
- Language: German
- Year: 1969
- Author: Mogens Dyhr, Ingeborg Zint
- Language: German
- Year: 1988