1. J. Polivka, P. Fiala, and J. Machac, Prog. Electromagn. Res. 111, 311 (2011).
2. A. M. Shutko, Microwave Radiometry of Water Surface and Soils (Nauka, Moscow, 1986) [in Russian].
3. N. A. Armand and V. M. Polyakov, Radio Propagation and Remote Sensing of the Environment (CRC, New York, 2005).
4. B. G. Kutuza, M. V. Danilychev, and O. I. Yakovlev, Satellite Monitoring of the Earth: Microwave Radiometry of Atmosphere and the Surface (URSS, Moscow, 2015) [in Russian].
5. Yu. V. Gulyaev and E. E. Godik, Vestn. Akad. Nauk SSSR, No. 8, 118 (1983).