D. N. Castelblanco-Martínez, B. Morales-Vela, H. A. Hernández-Arana, and J. Padilla-Saldivar, “Diet of the manatees (<i>Trichechus manatus manatus</i>) in Chetumal Bay, Mexico”, Lat. Am. J. Aquat. Mamm., vol. 7, no. 1-2, pp. 39-46, Dec. 2009.