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♦ ¹Distribution and feeding ecology of Raja radiata in the northeastern North Sea and Skagerrak (Norwegian Deep), J. E. Skjæraasen, and O. A. Bergstad, ICES Journal of Marine Science, 57: 1249–1260. 2000
♦ ²Feeding of Liparids (Liparidae) in the Western Bering Sea, V. V. Napazakov and V. I. Chuchukalo, Journal of Ichthyology, Vol. 45, No. 4, 2005, pp. 313–317