| 引用 | Walker, P.A., 1998. Fleeting images. Dynamics of North Sea ray populations. University of Amsterdam. 145 p. Ph.D. dissertation. |
| DOI / ISBN | |
| 論文のURL | |
| Ref. No. | 41305 |
| 言語 | English |
| 使用量 | not seen |
| 意見 | |
| Find this reference in | Google Scholar | Scirus | Species used from this reference |