- Author: Konstanze Sommer
- Language: German
- Year: 2015
- Author: Gotthard Günther
- Language: German
- Year: 1979
- Author: Gotthard Günther
- Language: German
- Year: 1976
- Author: Rudolf Bernet Eduard Marbach Iso Kern
- Language: German
- Year: 2016
- Author: Rainer Hegselmann
- Language: German
- Year: 1985
- Author: Henri Bergson
- Language: German
- Year: 2013
- Author: Bertrand Russell
- Language: German
- Year: 2008
- Author: Hermann Krings
- Language: German
- Year: 1982
- Author: Robert André
- Language: German
- Year: 2001
