STEPHENSON, W. R. Observation of a directed resonance in soil driven by transverse rock motion. Bulletin of the New Zealand Society for Earthquake Engineering, [S. l.], v. 22, n. 2, p. 81–89, 1989. DOI: 10.5459/bnzsee.22.2.81-89. Disponível em: https://bulletin.nzsee.org.nz/article/view/778. Acesso em: 27 may. 2026.