| Citation | Heggberget, T.M. 1993 Marine-feeding otters (Lutra lutra) in Norway: seasonal variation in prey and reproductive timing. Journal of the Marine Biological Association of the United Kingdom 73(2):297-312. |
| DOI / ISBN | http://dx.doi.org/10.1017/S0025315400032860 |
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| Ref. No. | 138133 |
| Language | English |
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