Sánchez Robledo, E.; Oviedo Correa, L. E.; Herra-Miranda, D.; Pacheco-Polanco, J. D.; Goodman, S.; Guzman, H. The Abundance of False Killer Whale, Pseudorca Crassidens (Artiodactyla: Delphinidae) in Coastal Waters of Golfo Dulce and Osa Peninsula, Costa Rica. Rev. Biol. Trop. 2020, 68, 580–589.