Park, R., H. E. Chapman, L. G. Cormack, and P. J. North. “New Contributions to the International Workshop on the Seismic and Retrofitting of Reinforced Concrete Bridges Bormio, Italy, April 2-5, 1991”. Bulletin of the New Zealand Society for Earthquake Engineering, vol. 24, no. 2, June 1991, pp. 139-01, doi:10.5459/bnzsee.24.2.139-201.