BRUNO, J.; DARUGNA, F.; BOLMGREN, K.; WÜBBENA, J. B.; MITCHELL, C.; SCHMITZ, M. Quality analysis of dual-frequency smartphone-based ionospheric TEC measurements: what can be achieved?. Annals of Geophysics, [S. l.], v. 64, n. 1, p. RS103, 2021. DOI: 10.4401/ag-8517. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/8517. Acesso em: 25 apr. 2024.