Foppiano, A.J., Ovalle, E.M., Bataille, K. y Stepanova, .M. 2008. Ionospheric evidence of the May 1960 earthquake over Concepción?. Geofísica Internacional. 47, 3 (jul. 2008), 179–183. DOI:https://doi.org/10.22201/igeof.00167169p.2008.47.3.79.