García, L.E. Development of the Colombian Seismic Code(PDF). Proceedings of the Eighth World Conference on Earthquake Engineering. Earthquake Engineering Research Institute: 747–754. 1984 [25 August 2012]. (原始内容存档(PDF)于2020-11-16).
García, L.E. Development of the Colombian Seismic Code(PDF). Proceedings of the Eighth World Conference on Earthquake Engineering. Earthquake Engineering Research Institute: 747–754. 1984 [25 August 2012]. (原始内容存档(PDF)于2020-11-16).