- Author: Bernd Braun, Dirk Schumann
- Language: German
- Year: 2023
- Author: Dirk Schumann, Christoph Gusy, Walter Mühlhausen
- Language: German
- Year: 2021
- Author: Meike Sophia Baader, Till Kössler, Dirk Schumann
- Language: German
- Year: 2023
- Author: Gerhard Weilandt, Kaja von Cossart, Dirk Schumann
- Language: German
- Year: 2016
- Author: Eberhard Kolb, Dirk Schumann
- Language: German
- Year: 2022
- Author: Dirk Schumann
- Language: English
- Year: 2010
- Author: Dirk Schumann, Eberhard Kolb
- Language: German
- Year: 2013