Billings, I. J. “3rd U.S. - Japan Workshop on the Improvement of Building Structural Design and Construction Practices, 29 July-1 August 1988 Tokyo, Japan”. Bulletin of the New Zealand Society for Earthquake Engineering 22, no. 2 (June 30, 1989): 73–75. Accessed June 25, 2026. https://bulletin.nzsee.org.nz/article/view/776.