BUTCHER, G. W. Design loadings. Bulletin of the New Zealand Society for Earthquake Engineering, [S. l.], v. 9, n. 1, p. 56–62, 1976. DOI: 10.5459/bnzsee.9.1.56-62. Disponível em: https://bulletin.nzsee.org.nz/article/view/1188. Acesso em: 18 jun. 2026.