- Author: Georg Giebeler, Harald Krause, Rainer Fisch, Florian Musso, Bernhard Lenz, Alexander Rudolphi
- Language: English
- Year: 2009
- Author: Bernhard Lenz, Jürgen Schreiber, Thomas Stark
- Language: German
- Year: 2010
- Author: Bernhard Lenz, Jürgen Schreiber, Thomas Stark
- Language: English
- Year: 2012
- Author: Bernhard Lenz, Jürgen Schreiber, Thomas Stark, Jürgen Schreiber
- Language: English
- Year: 2013
- Author: Bernhard Lenz, Florian Musso, Rainer Fisch, Harald Krause, Alexander Rudolphi
- Language: English
- Year: 2012