BREMER, J. The mean solar magnetic field as an indicator of the interplanetary magnetic field. Annals of Geophysics, [S. l.], v. 39, n. 4, 1996. DOI: 10.4401/ag-4003. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/4003. Acesso em: 31 jul. 2021.