- Author: Heinz-Peter Schmiedebach (editor), R. Winau (editor), Rudolf Häring (editor)
- Language: German
- Year: 1990
- Author: R. Häring (editor), Rudolf Häring (editor)
- Language: German
- Year: 1985
- Author: Rudolf Häring (editor), Hans Zilch (editor)
- Language: German
- Year: 2011