- Author: Kroll Frank-Lothar, Munke Martin
- Language: German
- Year: 2015
- Author: Kroll Frank-Lothar, Munke Martin
- Language: German
- Year: 2014
- Author: Dressel Carl-Christian, Kroll Frank-Lothar, Redworth Glyn
- Language: German
- Year: 2019
- Author: Bartl Franziska, Kroll Frank-Lothar, Schieren Stefan
- Language: German
- Year: 2022