Santos, M. C. O., C. Olavarría, M. Borobia, S. Caballero, E. R. Secchi, S. Siciliano, and D. M. Palacios. “A Tale of Two Dolphins: Introduction to the Special Volume on the Biology and Conservation of Neotropical Dolphins of the Genus <i>Sotalia</I>”. Latin American Journal of Aquatic Mammals, vol. 8, no. 1-2, Dec. 2010, pp. 9-23, doi:10.5597/lajam00148.