- Author: Hermann Hill, Karl-Peter Sommermann, Joachim Wieland, Jan Ziekow
- Language: German
- Author: Cristina Fraenkel-Haeberle, Sabine Kropp, Francesco Palermo, Karl-Peter Sommermann
- Language: English
- Year: 2015
- Author: Karl-Peter Sommermann Bert Schaffarzik
- Language: German
- Year: 2019