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♦ ¹Forage fauna in the diet of three large pelagic fishes (lancetfish, swordfish and yellowfin tuna) in the western equatorial Indian Ocean, Michel Potier, Francis Marsac, Yves Cherel, Vincent Lucas, Richard Sabatié, Olivier Maury and Frédéric Ménard, Fisheries Research 83 (2007) 60–72
♦ ²del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.