| Citation | Derocher, A.E. and I. Stirling 1994 Age-specific reproductive performance of female polar bears (Ursus maritimus). J. Zool. Lond. 234:527-536. |
| DOI / ISBN | |
| Paper URL | |
| Ref. No. | 120447 |
| Language | English |
| Usage | used in part |
| Remarks | |
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