- Author: Jörg Kurt Grütter
- Language: German
- Year: 2019

- Author: Maria Pina Limongelli Mehmet Çelebi
- Language: English
- Year: 2019

- Author: Michael Stahr
- Language: German
- Year: 2018

- Author: Anette Müller
- Language: German
- Year: 2018

- Author: Eva Barreira Ricardo M.S.F. Almeida
- Language: English
- Year: 2019