CALCARA, G. The Istituto Nazionale di Geofisica and its historical archives. Annals of Geophysics, [S. l.], v. 52, n. 6, p. 549–555, 2009. DOI: 10.4401/ag-4613. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/4613. Acesso em: 27 oct. 2021.