Dowrick, D. J. “Revised Isoseismal Maps for the 1956 Bay of Plenty and 1987 Edgecumbe, New Zealand, Earthquakes: Implications for Seismic Hazard and Risk”. Bulletin of the New Zealand Society for Earthquake Engineering, vol. 40, no. 4, Dec. 2007, pp. 200-6, doi:10.5459/bnzsee.40.4.200-206.