Serrano, A., A. García-Jiménez, and C. González-Gándara. “Has the Manatee (<i>Trichechus manatus</I>) Dissapeared from the Northern Coast of the State of Veracruz, Mexico?”. Latin American Journal of Aquatic Mammals, vol. 6, no. 1, June 2007, pp. 109-12, doi:10.5597/lajam00115.