Phoel, W. C., G. T. Rowe, B. May, and S. Fromm. “Sediment Characteristic of the Continental Shelf in the Northern Gulf of Mexico”. Revista De Biología Tropical, vol. 41, no. S1, Dec. 1993, pp. 49–52, https://revistas.ucr.ac.cr/index.php/rbt/article/view/29289.