- Author: McGirr Michael
- Language: English
- Year: 2017
- Author: Weickel Martina
- Language: German
- Year: 2014
- Author: Trökes Anna
- Language: German
- Year: 2015
- Author: Lichtner Gabriele, Scott Jane
- Language: German
- Year: 2018
- Author: Lee Roberta
- Language: German
- Year: 2016
- Author: Boon Brooke, Di Turo Daniel, Kirk Martin
- Language: German
- Year: 2015
- Author: Bannenberg Thomas
- Language: German
- Year: 2014
- Author: Busemann Christian
- Language: German
- Year: 2016