- Author: Eddy Willems (auth.)
- Language: German
- Year: 2015
- Author: Jayant V. Narlikar (auth.)
- Language: English
- Year: 2015
- Author: Justin Zobel (auth.)
- Language: English
- Year: 2014
- Author: Gerald Lembke Ingo Leipner (auth.)
- Language: German
- Year: 2014
- Author: Albrecht Fischer Eva Toball (auth.)
- Language: German
- Year: 2014
- Author: Tobias Schrödel (auth.)
- Language: German
- Year: 2014
- Author: Thomas Grüter (auth.)
- Language: German
- Year: 2013
- Author: Matthias W. Zehnder (auth.)
- Language: German
- Year: 1998
- Author: Professor Dr. Alexander Hars (auth.)
- Language: English
- Year: 2003