- Author: Paul Ekman
- Language: German
- Year: 2011
- Author: Peter O'Donnell
- Language: German
- Year: 1983
- Author: Peter O'Donnell
- Language: German
- Year: 1988
- Author: Peter O'Donnell
- Language: German
- Year: 1979
- Author: Peter O'Donnell
- Language: German
- Year: 1989
- Author: Peter O'Donnell
- Language: German
- Year: 1990
- Author: Peter O'Donnell
- Language: German
- Year: 1970
- Author: Peter O'Donnell
- Language: German
- Year: 1982
- Author: Peter ODonnell
- Language: German
- Year: 1975
- Author: Peter O'Donnell
- Language: German
- Year: 1969