- Author: SS, Ingrao Christian, Heinemann Enrico, Schäfer Ursel
- Language: German
- Year: 2012
- Author: Schäfer Ursel, Ziegler Jean
- Language: German
- Year: 2015
- Author: Schäfer Ursel, Ziegler Jean
- Language: German
- Year: 2015
- Author: Chang Jung, Halliday Jon, Mao Zedong, Roller Werner, Schäfer Ursel, Schlatterer Heike
- Language: German
- Year: 2014