Orense, Rolando P., et al. “Geotechnical Aspects of the 2007 Niigataken Chuetsu-Oki, Japan Earthquake”. Bulletin of the New Zealand Society for Earthquake Engineering, vol. 41, no. 2, June 2008, pp. 83-89, https://doi.org/10.5459/bnzsee.41.2.83-89.