- Author: Jakub Holas
- Language: Czech
- Year: 2013
- Author: Ivan Smieško
- Language: Slovak
- Year: 2017
- Author: Vereinte Nationen., Modick Klaus, Rees Matt, Matt Beynon Rees
- Language: German
- Year: 2009
- Author: Etzold Veit, Tsokos Michael
- Language: German
- Year: 2012
- Author: Hahn Nikola
- Language: German
- Year: 2013
- Author: Kali Nicole Gross
- Language: English
- Year: 2016
Das goldene Zeichen
epub
- Author: Gralle Albrecht
- Language: German
- Year: 2015
- Author: Jackson Jonathan, Jacobs Jonathan A.
- Language: English
- Year: 2017