Berrill, J.B., Beetham, R. and Tanaka, H. (1993) “Liquefaction: Ejecta samples from the 1993 Hokkaido-Nansei-Oki earthquake”, Bulletin of the New Zealand Society for Earthquake Engineering, 26(4), pp. 411–414. doi:10.5459/bnzsee.26.4.411-414.