GASPARINI, P.; PIERATTINI, D. Magnetic measurements at Naples in the XIX century. Annals of Geophysics, [S. l.], v. 40, n. 2, 1997. DOI: 10.4401/ag-3905. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3905. Acesso em: 19 apr. 2024.