BASKARADAS, J. A.; BIANCHI, S.; PIETRELLA, M.; PEZZOPANE, M.; SCIACCA, U.; ZUCCHERETTI, E. Description of ionospheric disturbances observed by Vertical Ionospheric Sounding at 3 MHz. Annals of Geophysics, [S. l.], v. 57, n. 1, p. A0187, 2014. DOI: 10.4401/ag-6345. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/6345. Acesso em: 21 may. 2022.