1. N. I. Kabanov and B. I. Osetrov, The Ionosphere Backscatter Sounding [in Russian], Sovetskoe Radio, Moscow (1965).
2. A. Benner, Proc. IRE, 37, No. 1, 44–47 (1949). https://doi.org/10.1109/jrproc.1949.233278
3. Yu. A. Chernov, The Ionosphere Backscatter Sounding [in Russian], Svyaz’, Moscow (1971).
4. T. A. Croft, Rev. Geophys., 10, No. 1, 73–155 (1972). https://doi.org/10.1029/RG010i001p00073
5. A. A. Kolosov, ed., The Principles of Over-the-Horizon Radar [in Russian], Radio i Svyaz’, Moscow (1984).