- Author: Robert Locqueneux (auth.) Andreas Kleinert (ed.)
- Language: German
- Year: 1989
Karl Popper
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- Author: Bryan Magee
- Language: German
- Year: 1986
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- Language: German
- Year: 1999
- Author: Hermann L. Gukenbiehl (auth.) Hermann Korte Bernhard Schäfers (eds.)
- Language: German
- Year: 1992