[1]
Zakharov, I.G. and Tsymbal, A.M. 2019. Longitudinal variations of the total electronic content of the mid- latitude ionosphere. Visnyk of V.N. Karazin Kharkiv National University, series “Radio Physics and Electronics”. 30 (Dec. 2019), 38-44. DOI:https://doi.org/10.26565/2311-0872-2019-30-04.