- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2023
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2023
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2022
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2015
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2019
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2016
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2021
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2013
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2020
- Author: Stephan Pötters, Christoph Werkmeister
- Language: German
- Year: 2012