Larkin, Tam, and Chris Van Houtte. “Determination of Site Period for NZS1170.5:2004”. Bulletin of the New Zealand Society for Earthquake Engineering 47, no. 1 (March 31, 2014): 28–40. Accessed December 2, 2022. https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/171.