- Author: Reinhardt Kiehl
- Language: English
- Year: 2010
- Author: Prof. Dr. Kurt Schütte (auth.)
- Language: German
- Year: 1968
- Author: Prof. Dr. Kurt Schütte (auth.)
- Language: German
- Year: 1968
- Author: Prof. Dr. Kurt Schütte (auth.)
- Language: German
- Year: 1968