Hebbeln, Dierk, Detlef Beese, and Jorge Cortés. “Morphology and Sediment Structures in Golfo Dulce, Costa Rica”. Revista de Biología Tropical 44, no. S3 (December 1, 1996): 1–10. Accessed May 6, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/29400.