
- Author: Silja Haller
- Language: German
- Year: 2012

- Author: Ansgar Martins
- Language: German
- Year: 2016

- Author: Kenya Herrera
- Language: Spanish
- Year: 2019

- Author: Janina Wurbs
- Language: German
- Year: 2018

- Author: Buning Michael, Legant Martin, Schauwinhold Berenike, Steinbrink Malte, Süßenguth Tore
- Language: English
- Year: 2016

- Author: Hans Broekhuis Ralf Vogel
- Language: English
- Year: 2009

- Author: Helena Trompelt
- Language: English
- Year: 2010