Blakeiey, R. W. G., Charleson, A. W., Hitchcock, H. C., Megget, L. M., Priestley, M. J. N., Sharpe, R. D. and Skinner, R. I. (1979) “Recommendations for the design and construction of base isolated structures”, Bulletin of the New Zealand Society for Earthquake Engineering, 12(2), pp. 136–157. doi: 10.5459/bnzsee.12.2.136-157.