BETRO, B.; DI NATALE, M.; STUCCHI, M.; ZONNO, G. Some considerations on the hypocentre location problem. Annals of Geophysics, [S. l.], v. 34, n. 1, p. 161–187, 1981. DOI: 10.4401/ag-4694. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/4694. Acesso em: 16 oct. 2021.