ISAAKIDIS, S. A.; XENOS, T. D. Ten years analysis of Tropospheric refractivity variations. Annals of Geophysics, [S. l.], v. 47, n. 4, 2004. DOI: 10.4401/ag-3347. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3347. Acesso em: 31 jul. 2021.