MEHMOOD, Maria; SALEEM, Sajid; FILJAR, Renato; NAQVI, Najam Abbas; AHMED, Arslan. Total Electron Content (TEC) estimation over Pakistan from local GPS network using spherical harmonics. Annals of Geophysics, [S. l.], v. 64, n. 1, p. GD102, 2021. DOI: 10.4401/ag-8433. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/8433. Acesso em: 6 apr. 2026.