| Publication Type: | Journal Article |
| Year of Publication: | 1883 |
| Authors: | G. Pfeffer |
| Journal: | Abh. naturw. Ver. Hamburg-Altona |
| Volume: | 7 |
| Start Page: | 1 |
| Pagination: | 1-24 |
| Publication Type: | Journal Article |
| Year of Publication: | 1883 |
| Authors: | G. Pfeffer |
| Journal: | Abh. naturw. Ver. Hamburg-Altona |
| Volume: | 7 |
| Start Page: | 1 |
| Pagination: | 1-24 |