KENNETT, B. L. N. Higher modes in the near surface: the influence of gradients. Seismica, [S. l.], v. 5, n. 2, 2026. DOI: 10.26443/seismica.v5i2.2404. Disponível em: https://seismica.library.mcgill.ca/article/view/2404. Acesso em: 19 aug. 2026.