- Author: Jürgen Finger, Sven Keller, Andreas Wirsching
- Language: German
- Year: 2009
- Author: Jürgen Finger Sven Keller Andreas Wirsching
- Language: German
- Year: 2013
- Author: Jürgen Finger (auth.)
- Language: German
- Year: 2012
- Author: Dipl.-Kfm. Jürgen Finger (auth.)
- Language: German
- Year: 1996