ROMANO, V.; PAU, S.; PEZZOPANE, M.; SPOGLI, L.; ZUCCHERETTI, E.; AQUINO, M.; HANCOCK, C. M. eSWua: a tool to manage and access GNSS ionospheric data from mid-to-high latitudes. Annals of Geophysics, [S. l.], v. 56, n. 2, p. R0223, 2013. DOI: 10.4401/ag-6244. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/6244. Acesso em: 1 dec. 2021.