- Author: Claudia Appl, Annalena Koytek, Stefan Schmid
- Language: German
- Year: 2016
- Author: Stefan Schmid
- Language: German
- Year: 2021
- Author: Stefan Schmid, Alexander Thomas
- Language: German
- Year: 2016
- Author: Stefan Schmid, Astrid Utler
- Language: German
- Year: 2022
- Author: Ulrike de Ponte, Stefan Schmid, Alexander Thomas, Astrid Utler
- Language: German
- Year: 2008
- Author: Michael Kutschker, Stefan Schmid
- Language: German
- Year: 2010
- Author: Stefan Schmid
- Language: German
- Year: 2012
- Author: Stefan Schmid
- Language: German
- Year: 2020