BIANCHI, C.; ALTADILL, D. Ionospheric Doppler measurements by means of HF-radar techniques. Annals of Geophysics, [S. l.], v. 48, n. 6, 2005. DOI: 10.4401/ag-3248. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3248. Acesso em: 25 sep. 2021.