- Author: Welling Julia, Brown Nina W
- Language: German
- Year: 2012
- Author: Weckert Al
- Language: German
- Year: 2017
- Author: Prohaska Sabine
- Language: German
- Year: 2013
- Author: Mühlisch Sabine
- Language: German
- Year: 2012
- Author: Dietz Thomas, Dietz Ingeborg, Stierlin Helm
- Language: German
- Year: 2012