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♦ 1Walker, William A.; Mead, James G.; and Brownell, Jr., Robert,
Diets of Baird’s Beaked Whales, Berardius bairdii, in the Southern Sea Of Okhotsk and Off the Pacific Coast Of Honshu, Japan (2002). Publications, Agencies and Staff of the U.S. Department of Commerce. Paper 107.
♦ 2Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014).
Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.