- Author: Heiko Feldner Kevin Passmore Stefan Berger
- Language: English
- Year: 2010
- Author: Stefan Berger
- Language: English
- Year: 2007
- Author: Stefan Berger
- Language: English
- Year: 2007
- Author: Stefan Berger Chris Lorenz
- Language: English
- Year: 2010
- Author: Stefan Berger
- Language: English
- Year: 2007
- Author: Stefan Berger
- Language: English
- Year: 2006
- Author: Stefan Berger Mark Donovan Kevin Passmore
- Language: English
- Year: 1999
- Author: Stefan Berger Dieter Sicker
- Language: English
- Year: 2009