BHARDWAJ, S. C.; VIDYARTHI, A.; JASSAL, B. S.; SHUKLA, A. K. Estimation and Assessment of Ionospheric Slant Total Electron Content (STEC) Using Dual-frequency NavIC Satellite System. Journal of Graphic Era University, [S. l.], v. 9, n. 2, p. 137–156, 2021. DOI: 10.13052/jgeu0975-1416.923. Disponível em: https://www.journal.riverpublishers.com/index.php/JGEU/article/view/30. Acesso em: 4 may. 2024.