CALOI, P. Commissione sismologica europea - Riunione di Utrecht (8-12 Aprile 1958). Annals of Geophysics, [S. l.], v. 11, n. 2, p. 149–152, 1958. DOI: 10.4401/ag-5817. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5817. Acesso em: 26 sep. 2022.