- Author: Tepperwein Kurt
- Language: German
- Year: 2009
- Author: Weidinger Georg
- Language: German
- Year: 2014
- Author: Strobel Tatjana D.
- Language: German
- Year: 2012
- Author: Jiddi Krishnamurti
- Language: German
- Year: 2013
- Author: Robert Baer
- Language: German
- Year: 2003
- Author: Richard David Precht
- Language: German
- Year: 2022
- Author: Chalmers Johnson
- Language: German
- Year: 2004
- Author: Leo Sievers
- Language: German
- Year: 1983
- Author: Dr. Dr. Ernst Heissmann
- Language: German
- Year: 1969
- Author: Ernst Peter Fischer
- Language: German
- Year: 1990