- Author: Steffen Clement Konstantin Kittel (eds.)
- Language: German
- Year: 2008
- Author: Steffen Clement Konstantin Kittel (eds.)
- Language: German
- Year: 2008
- Author: Steffen Clement, Konstantin Kittel
- Language: German
- Year: 2006
- Author: Steffen Clement, Konstantin Kittel
- Language: German
- Year: 2008
- Author: Konstantin Kittel
- Language: German
- Year: 2007