VELDKAMP, J. Some Sumatra earthquakes. Annals of Geophysics, [S. l.], v. 12, n. 2, p. 249–255, 1959. DOI: 10.4401/ag-5722. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5722. Acesso em: 29 apr. 2024.