- Author: Leopold Böswirth (auth.)
- Language: German
- Year: 2010
- Author: Leopold Böswirth (auth.)
- Language: German
- Year: 2007
- Author: Leopold Böswirth (auth.)
- Language: German
- Year: 2004
- Author: Leopold Böswirth (auth.)
- Language: German
- Year: 2010
- Author: Leopold Böswirth (auth.)
- Language: German
- Year: 1995
- Author: Leopold Böswirth (auth.)
- Language: German
- Year: 1993
- Author: Leopold Böswirth (auth.)
- Language: German
- Year: 2001
- Author: Leopold Böswirth (auth.)
- Language: German
- Year: 2000