Estrada Medina, Hector, Juan José Jiménez Osornio, Oscar Álvarez-Rivera, and Roberto Carlos Barrientos Medina. “The Karst of Yucatan: Its Origin, Morphology and Biology”. Acta Universitaria 29 (October 23, 2019): 1–18. Accessed June 28, 2026. https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/2292.