MEDI, E. Sull’origine del Campo Magnetico Terrestre e sulle tempeste magnetiche. Annals of Geophysics, [S. l.], v. 1, n. 4, p. 509–512, 1948. DOI: 10.4401/ag-6081. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/6081. Acesso em: 9 dec. 2021.