- Author: Manfred Löwisch
- Language: German
- Year: 1970
- Author: Kurt Walters
- Language: German
- Year: 1940
Probleme des gegenseitigen Vertrages: Untersuchungen zur Äquivalenz gegenseitiger Leistungspflichten
pdf
- Author: Wolfgang van den Daele
- Language: German
- Year: 1968
- Author: Hermann Heinrich Elkan
- Language: German
- Year: 1928
- Author: Hans Cramer
- Language: German
- Year: 1932
- Author: Werner Drefahl
- Language: German
- Year: 1940
- Author: Helmut Meins
- Language: German
- Year: 1940
- Author: Claus Roxin
- Language: German
- Year: 1970
- Author: Folkmar Koenigs
- Language: German
- Year: 1954
- Author: Erwin Mumssen
- Language: German
- Year: 1933