
- Author: Hans Delbrück (editor)
- Language: German
- Year: 1892

- Author: Hans Delbrück (editor)
- Language: German
- Year: 1891

- Author: Magnus Biermer (editor), Hans Delbrück (editor)
- Language: German
- Year: 1909

- Author: Hans Delbrück (editor)
- Language: German
- Year: 1889

- Author: Hans Delbrück (editor)
- Language: German
- Year: 1890

- Author: Hans Delbrück (editor)
- Language: German
- Year: 1882