Lan HT, Hào V, Vinh DV, Tâm Đào NH. Predictions foF2 of equatorial ionosphere and applications for HF communication in Vietnam. Vietnam J. Earth Sci. [Internet]. 2014 Feb. 19 [cited 2024 Apr. 20];35(2):130-6. Available from: https://vjs.ac.vn/index.php/jse/article/view/3657