1. Bass F. G., Fuks I. M. Wave Scattering from Statistically Rough Surfaces, 424 p. (Nauka, Moscow, 1972) [in Russian].

2. German M. A. Space methods of research in meteorology, 352 p. (Gidrometeoizdat, Leningrad, 1985) [in Russian].

3. Ring weather maps and the amount of precipitation in the form of isogytes, Is. 27 (Ukrainian HMC, Kiev, 1996) [in Russian].

4. Kronberg P. Remote study of the Earth: Fundamentals and methods of remote research in geology, Transl. from Germ., 350 p. (Mir, Moscow, 1988) [in Russian].

5. Landgrebe D. A. Remote sensing: The quantitative approach, 415 p. (Nedra, Moscow, 1983) [in Russian].

6. Soil Atlas of the USSR, 487 p. (GUGK pri Sovete Ministrov SSSR, Moscow, 1983) [in Russian].

7. Melnik Yu. A. (Ed.) Radar methods of the earth exploration, 264 p. (Sov. radio, Moscow, 1980) [in Russian].

8. Mitnik L. M., Viktorov S. V. (Eds.) Radar Sensing of the Earth's Surface from Space, 198 p. (Gidrometeoizdat, Leningrad, 1990) [in Russian].

9. Reutov E. A., Shutko A. M. Determination of the soil water content using microwave radiometry and a priory information. Issled. Zemli iz Kosmosa, No. 1, 73—87 (1985) [in Russian].

10. Fuks I. M., Yampolsky Yu. M. Relationship of radar contrast with soil moisture. In: Abstracts of the XVI All-Union Conference on Radio Propagation, Kharkov, October 1990, Pt. II, 236—237 (Kharkov, 1990) [in Russian].

11. Hipp J. E. Soil electromagnetic parameters as functions of frequency, soil density and soil moisture. Tr. In-ta inzh. po jelektrotehnike i radiojelektronike, 62 (1), 122—128 (1974) [in Russian].

12. Shutko A. M. Microwave radiometry of water surface and soils, 188 p. (Nauka, Moscow, 1986) [in Russian].

13. CEOS Yearbook. Smith system engineering limited, UK, 145 p.

14. Dranovsky V. I., Yefimov V. B., Kalmykov I. A., et al. Possibilities of Ecological Environment Monitoring the Using «Sich-1» spacecraft. Proc. Fourth Ukraine-China symp. of space science and technology, 4—7 (Kiev, 1996).

15. ESA Yearbook, 256 p. (McGraw-Hill, 1998).