Borcherdt, R. D. “On the Observation, Characterisation, and Predictive GIS Mapping of Strong Ground Shaking for Seismic Zonation”. Bulletin of the New Zealand Society for Earthquake Engineering 24, no. 4 (December 31, 1991): 287–305. Accessed September 5, 2026. https://bulletin.nzsee.org.nz/article/view/723.