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♦ ¹Feeding and Food Consumption by the Barents Sea Skates, A.V. Dolgov, J. Northw. Atl. Fish. Sci., Vol. 35: 495–503
♦ ²Seasonal and geographical variations in the diet of Common Guillemots Uria aalge off western Scotland, D J Halley, N. Harrison, A. Webb and D.R. Thompson, SEABIRD 17: 12-20
♦ ³Trophic ecology of blue whiting in the Barents Sea, Andrey V. Dolgov, Edda Johannesen, Mikko Heino, and Erik Olsen, ICES Journal of Marine Science, 67: 483–493
♦ ⁴An estimate of summer food consumption of six seabird species in Iceland, K. Lilliendahl and J. Solmundsson, ICES Journal of Marine Science, 54: 624–630. 1997