Santamaría-Díaz, Alfredo, et al. “Cenozoic Deformations in the Caltepec Fault Cover, Tamazulapam Region, Southern Mexico”. Revista Mexicana De Ciencias Geológicas, vol. 25, no. 3, Jan. 2018, pp. 494-16, https://rmcg.unam.mx/index.php/rmcg/article/view/689.