“Statistical Characteristics of Geomagnetic Storm Activity During Solar Cycle 24, 2009–2020”. Visnyk of V.N. Karazin Kharkiv National University, series “Radio Physics and Electronics”, no. 33 (November 17, 2020): 69–77. Accessed October 25, 2026. https://periodicals.karazin.ua/radiophysics/article/view/17454.