- Author: Herbert Wittel Dieter Muhs Dieter Jannasch Joachim Voßiek (auth.)
- Language: German
- Year: 2009
- Author: Herbert Wittel Dieter Muhs Dieter Jannasch Joachim Voßiek (auth.)
- Language: German
- Year: 2010
- Author: HerbertWittel ⋅ Dieter Muhs ⋅ Dieter Jannasch ⋅ Joachim Voßiek
- Language: German
- Year: 2013
- Author: Herbert Wittel Dieter Muhs Dieter Jannasch Joachim Voßiek
- Language: German
- Year: 2015
- Author: Herbert Wittel Dieter Muhs Dieter Jannasch Joachim Voßiek (auth.)
- Language: German
- Year: 2014
- Author: Dieter Muhs Herbert Wittel Manfred Becker (auth.)
- Language: German
- Year: 1993
