Guo, Qiang, Yu Zheng, L. F. Chernogor, K. P. Garmash, and V. T. Rozumenko. 2019. “Ionospheric Processes Observed With the Passive Oblique-Incidence HF Doppler Radar”. Visnyk of V.N. Karazin Kharkiv National University, Series “Radio Physics and Electronics”, no. 30 (December), 3-15. https://doi.org/10.26565/2311-0872-2019-30-01.