- 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: Herbert Wittel Dieter Muhs Dieter Jannasch Joachim Voßiek (auth.)
- Language: German
- Year: 2014
- Author: Herbert Wittel Dieter Muhs Dieter Jannasch Joachim Voßiek (auth.)
- Language: German
- Year: 2013
- Author: Herbert Wittel Dieter Muhs Dieter Jannasch Joachim Voßiek (auth.)
- Language: German
- Year: 2012
- 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