Hasenaka, T., Ban, M., & Delgado Granados, H. (1994). Contrasting volcanism in the Michoacán-Guanajuato Volcanic Field, central Mexico: Shield volcanoes vs. cinder cones. Geofísica Internacional, 33(1), 125–138. https://doi.org/10.22201/igeof.00167169p.1994.33.1.544