- Author: Otto Peter
- Language: German
- Year: 1988
- Author: Neuner Michael, Reisch Lucia A.
- Language: German
- Year: 1998
- Author: Neuhaus Helmut
- Language: German
- Year: 1982
- Author: Müller Christian
- Language: German
- Year: 2000
- Author: Kintzinger Martin, Rogge Jörg
- Language: German
- Year: 2004
- Author: Löw Konrad
- Language: German
- Year: 1993
- Author: Leder Matthias
- Language: German
- Year: 1998