Singh, S.K., Havskov, J., Mcnally, K., Ponce, L., Hearh, T. y Vassilious, M. 1978. The Oaxaca Mexico, earthquake of 29 november 1978: a preliminary report on aftershocks. Geofísica Internacional. 17, 3 (jul. 1978), 335–340. DOI:https://doi.org/10.22201/igeof.00167169p.1978.17.3.1054.