REINISCH, B. W.; SCALI, J. L.; HAINES, D. L. Ionospheric drift measurements with ionosondes. Annals of Geophysics, [S. l.], v. 41, n. 5-6, 1998. DOI: 10.4401/ag-3812. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3812. Acesso em: 18 oct. 2021.