DE FRANCESCHI, G.; GULYAEVA, T. L.; PERRONE, L. Forecasting geomagnetic activity three hours in advance for ionospheric applications. Annals of Geophysics, [S. l.], v. 44, n. 5-6, 2001. DOI: 10.4401/ag-3556. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3556. Acesso em: 16 jul. 2024.