- Author: Francesca Angiò, Silvio Bär, Manuel Baumbach, Anna Maria Gasser, Martin Hose, Irmgard Männlein-Robert, Eva María Mateo Decabo, Andrej Petrovic, Bernd Seidensticker, Adrian Stähli, Antje Wessels, Urs Müller
- Language: German
- Year: 2015
- Author: Francesca Angiò, Silvio Bär, Manuel Baumbach, Anna Maria Gasser, Martin Hose, Irmgard Männlein-Robert, Eva María Mateo Decabo, Andrej Petrovic, Bernd Seidensticker, Adrian Stähli, Antje Wessels, Urs Müller
- Language: German
- Year: 2015
- Author: Antje Wessels
- Language: German
- Year: 2014
- Author: Antje Wessels
- Language: German
- Year: 2003
- Author: James Ker Antje Wessels
- Language: English
- Year: 2020