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3. L. T. Matveev, Fundamentals of General Meteorology. Physics of Atmosphere (Gidrometeoizdat, Leningrad, 1965) [in Russian].
4. F. B. Chernyi, Propagation of Radio Waves (Sovetskoe Radio, Moscow, 1972) [in Russian].
5. N. A. Armand and M. A. Kolosov, Radiotekh. Elektron. (Moscow) 10, 1401 (1965).