
Deutsche Briefe
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- Author: Johannes Henningsen (auth.)
- Language: German
- Year: 1905

- Author: G. Geil (auth.)
- Language: German
- Year: 1916

- Author: Frank Haase (auth.)
- Language: German
- Year: 1986

- Author: Hans H. Rudnick (auth.) Anna-Teresa Tymieniecka (eds.)
- Language: English
- Year: 2000

- Author: M. J. Diamond (auth.) M. J. Diamond (eds.)
- Language: English
- Year: 1998