Delgado Granados, H., Urrutia-Fucugauchi, J., Hasenaka, T. y Ban, M. (1995) «Southwestward volcanic migration in the western Trans-Mexican Volcanic Belt during the last 2 Ma», Geofísica Internacional, 34(3), pp. 341–352. doi: 10.22201/igeof.00167169p.1995.34.3.728.