1. Andreev, V.L., Bulgakova, T.I., and Chelnokov, F.G., The method of evaluation of some northern fur seal population parameters based on labeling, Trudy VNIRO, 1978, vol. 128, pp. 23–32.
2. Antonelis, G.A., Ragen, T.J., and Rooks, N.J., Malebiased secondary sex ratios of northern fur seals on the Pribilof Islands, Alaska, 1989 and 1992, in Fur Seal Investigations, Sinclair, E.H., Ed., NOAA Tech. Mem., 1994, pp. 84–89.
3. Boltnev, A.I., Severnyi morskoi kotik Komandorskikh ostrovov (Fur Seals of the Commander Islands), Moscow: Izd. VNIRO, 2011.
4. Chapman, D.G., Critical study of Pribilov fur seal population estimates, Fish. Bull., 1964, vol. 63, no. 3, pp. 657–669.
5. Corey, J.A., Bradshaw, R.J., Barker, R.G., Harcourt, A., and Lloyd, S.D., Estimating survival and capture probability of fur seal pups using multistate mark–recapture models, J. Mammal., 2003, vol. 84, no. 1, pp. 65–80.