- Author: May Georg, Egler Anna, Rees Wilhelm
- Language: German
- Year: 2003
- Author: Rees Wilhelm, Roca María, Schanda Balázs
- Language: German
- Year: 2013
- Author: Rees Wilhelm, Müller Ludger, Ohly Christoph, Haering Stephan
- Language: German
- Year: 2019
- Author: Rees Wilhelm, Demel Sabine, Müller Ludger
- Language: German
- Year: 2007
- Author: Rees Wilhelm, Haering Stephan
- Language: German
- Year: 2020
- Author: Rees Wilhelm
- Language: German
- Year: 2004
- Author: Ohly Christoph, Rees Wilhelm, Gerosa Libero
- Language: German
- Year: 2017
- Author: Müller Ludger, Rees Wilhelm
- Language: German
- Year: 2014