S. Caballero, “Initial description of Major Histocompatibility Complex variation at two Class II loci (DQA-DQB) in <i>Sotalia fluviatilis</i> and <i>Sotalia guianensis</i>”, Lat. Am. J. Aquat. Mamm., vol. 8, no. 1-2, pp. 81-95, Dec. 2010.