MA, Q. T.; BUTTERWORTH, J. W. Simplified expressions for modelling rigid rocking structures on two-spring foundations. Bulletin of the New Zealand Society for Earthquake Engineering, [S. l.], v. 45, n. 1, p. 31–39, 2012. DOI: 10.5459/bnzsee.45.1.31-39. Disponível em: https://bulletin.nzsee.org.nz/article/view/212. Acesso em: 14 may. 2026.