- Author: Herman J. Bierens (auth.)
- Language: English
- Year: 1981
- Author: Svenja Lagershausen (auth.)
- Language: English
- Year: 2013
- Author: Marcus Brandenburg (auth.)
- Language: English
- Year: 2013
- Author: Martin Albrecht (auth.)
- Language: English
- Year: 2010
- Author: Michael Hierzenberger (auth.)
- Language: English
- Year: 2010
- Author: Andreas Röthig (auth.)
- Language: English
- Year: 2009
- Author: Dr. Norman Ehrentreich (auth.)
- Language: English
- Year: 2008
- Author: Dr. Sven von Widekind (auth.)
- Language: English
- Year: 2008
- Author: Baptiste Lebreton PhD (auth.)
- Language: English
- Year: 2007
- Author: Dr. Georg N. Krieg (auth.)
- Language: English
- Year: 2005