BRADLEY, P. A. Extreme values in ionospheric radio propagation. Annals of Geophysics, [S. l.], v. 45, n. 1, 2002. DOI: 10.4401/ag-3493. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3493. Acesso em: 26 apr. 2024.