García-Grajales, Jesús, et al. “Biological Observations and First Stranding Record of Mesoplodon Peruvianus from the Central Pacific Coast of Oaxaca, Mexico”. THERYA, vol. 8, no. 2, May 2017, p. 179, https://therya.mastozoologiamexicana.com/index.php/THERYA/article/view/451.