1. V. D. Bol'shakov and M. T. Prilepin, Izv. Vyssh. Uchebn. Zaved., Geod. Aerofotos'emka, No. 3 (1975).
2. A. A. Genike and Yu. S. Galkin, Geod. Kartogr., No. 11 (1972).
3. G. A. Andreev et al., Surveys of Science and Technology: Radioengineering Series [in Russian], Vol. 11, VINITI, Moscow (1977).
4. L. T. Matveev, Principles of General Meteorology [in Russian], Gidrometeoizdat, Leningrad (1966).
5. M. A. Kolosov, (ed.), Radio Wave Propagation [in Russian], Nauka, Moscow (1975).