- Author: Klaus-Peter Wegera (editor)
- Language: German
- Year: 1986
- Author: Oskar Reichmann (editor), Klaus-Peter Wegera (editor)
- Language: German
- Year: 1997
- Author: Robert P. Ebert (editor), Oskar Reichmann (editor), Hans-Joachim Solms (editor), Klaus-Peter Wegera (editor)
- Language: German
- Year: 1994