Adams, B. M., and J. D. Jaramillo. “A Two-Dimensional Study on the Weak-Motion Seismic Response of the Aburra Valley, Medellin, Colombia”. Bulletin of the New Zealand Society for Earthquake Engineering, vol. 35, no. 1, Mar. 2002, pp. 17-41, doi:10.5459/bnzsee.35.1.17-41.