Cortés, J., A. C. Fonseca, and D. Hebbeln. “Bottom Topography and Sediments Around Isla Del Caño, Pacific of Costa Rica”. Revista De Biología Tropical, vol. 44, no. S3, Dec. 1996, pp. 11–17, https://revistas.ucr.ac.cr/index.php/rbt/article/view/29401.