Urrutia Fucugauchi, J. 1988. Catastrophes and Earth history / W. A. Berggren y A. Van Couvering, eds. Geofísica Internacional. 27, 2 (abr. 1988), 299–301. DOI:https://doi.org/10.22201/igeof.00167169p.1988.27.2.1196.