“Ionospheric Response to Intense Geomagnetic Storms of 17 March 2015 and 22 June 2015 over the East African region”, Adv in Sci, Eng & Tec, vol. 2, no. 1, pp. 26 – 35, Oct. 2025, Accessed: Feb. 02, 2026. [Online]. Available: https://journals.mmust.ac.ke/index.php/aset/article/view/103