Urrutia-Fucugauchi, J. et al. 1994. Palaeomagnetic and palaeoenvironmental studies in the southern basin of Mexico - I. Volcanosedimentary sequence and basin structure of Chalco lake. Geofisica Internacional. 33, 3 (Jul. 1994), 421–430. DOI:https://doi.org/10.22201/igeof.00167169p.1994.33.3.1181.