| Citation | Walker, P.A., 1998. Fleeting images. Dynamics of North Sea ray populations. University of Amsterdam. 145 p. Ph.D. dissertation. |
| DOI / ISBN | |
| PDF/Reference URL | |
| Ref. No. | 41305 |
| Langue | English |
| Usage | not seen |
| Comments on the publication | |
| Trouver cette référence dans | Google Scholar | Scirus | Species used from this reference |