- Author: Roland Ißler, Rainer Kaenders, Stephan Stomporowski
- Language: German
- Year: 2022
- Author: Stephan Stomporowski, Anke Redecker, Rainer Kaenders
- Language: German
- Year: 2019
- Author: Peter Geiss, Roland Alexander Ißler, Rainer Kaenders
- Language: German
- Year: 2016