- Author: Stefanie Dengler Tanja Mayr-Sieber Paul Rusch Helen Schmitz
- Language: German
- Year: 2019
- Author: Stefanie Dengler Tanja Mayr-Sieber Paul Rusch Helen Schmitz
- Language: Alemão
- Year: 2019
- Author: Stefanie Dengler Tanja Mayr-Sieber Paul Rusch
- Language: German
- Year: 2014