- Author: Walter Benenson, John Harris, Horst Stöcker, Holger Lutz
- Language: English
- Year: 2006
- Author: Walter Benenson John W. Harris Horst Stöcker Holger Lutz
- Language: English
- Year: 2002
- Author: Walter Benenson John W. Harris Horst Stocker Holger Lutz
- Language: English
- Year: 2002
- Author: Walter Benenson John W. Harris Horst Stöcker Holger Lutz
- Language: English
- Year: 2006
- Author: Walter Benenson John W. Harris Horst Stöcker Holger Lutz
- Language: English
- Year: 2001
