- Author: Neuhöfer Stefan
- Language: German
- Year: 2023
- Author: Muckel Stefan
- Language: German
- Year: 2003
- Author: Meyer-Sparenberg Wolfgang
- Language: German
- Year: 1990
- Author: Meyer Kathrin
- Language: German
- Year: 2017
- Author: Löw Konrad
- Language: German
- Year: 1994
- Author: Lässig Curt Lutz
- Language: German
- Year: 1976
- Author: Kunisch Johannes
- Language: German
- Year: 1990
- Author: Krelle Wilhelm
- Language: German
- Year: 1965
- Author: Kramer Rolf
- Language: German
- Year: 2007