- Author: Niedobitek Matthias, Ruth Simone
- Language: German
- Year: 2007
- Author: Niedobitek Matthias, Sommermann Karl-Peter
- Language: German
- Year: 2013
- Author: Niedobitek Matthias
- Language: German
- Year: 1992
- Author: Jurczek Peter, Niedobitek Matthias
- Language: German
- Year: 2008