| Publication Type: | Journal Article |
| Year of Publication: | 1953 |
| Authors: | E. Pretner |
| Journal: | Actes du premier congrès international de Spéléologiepttts, volume |
| Volume: | 3 |
| Pagination: | 179-184. |
| Publication Type: | Journal Article |
| Year of Publication: | 1953 |
| Authors: | E. Pretner |
| Journal: | Actes du premier congrès international de Spéléologiepttts, volume |
| Volume: | 3 |
| Pagination: | 179-184. |