References
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Yochem, Pamela K. Brent S. Stewart, Robert L. DeLong, and Douglas P. DeMaster. "Diel Haul-out Patterns and Site Fidelity of Harbor Seals (Phoca vitulina) on San Miguel Island, California, in Autumn." Marine Mammal Science 3 (4), 1987, pp. 323-332.
