Chakraborty M, Kumar S, De BK, Guha A. Latitudinal characteristics of GPS derived ionospheric TEC: a comparative study with IRI 2012 model. Ann. Geophys. [Internet]. 2014 Oct. 14 [cited 2026 Apr. 13];57(5):A0539. Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/6438