Martínez Arredondo, J. C., V. M. Ortega-Chávez, and Y. R. Ramos Arroyo. “Regional Climatic Indices for the Sierra Gorda of Guanajuato”. Acta Universitaria 23, no. 6 (January 20, 2014): 10–25. Accessed July 21, 2026. https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/486.