1. B. M. Azizov, R. G. Mamedov, N. B. Sultanova, and A. P. Geraizade, “Microphotometric analysis of soil moisture based on remote sensing data,” in Aerospace Methods in Soil Science and Their Use in Agriculture (Nauka, Moscow,1990), pp. 183–189 [in Russian].
2. V. L. Andronikov, Aerospace Methods for Soil Studying (Kolos, Moscow, 1979) [in Russian].
3. V. L. Andronikov, T. V. Afanas’eva, and M. S. Simakova, “Interpretation of the soil cover of the main natural zones of the country for mapping by aerial and satellite images,” in Aerospace Methods in Soil Science and Their Use in Agriculture (Nauka, Moscow, 1990), pp. 22–34 [in Russian].
4. A. V. Baranovskaya and V. I. Azovtsev, “Effect of irrigation on the migration of carbonates in soils of the Volga region,” Pochvovedenie, No. 10, 17–26 (1981).
5. Volgograd Oblast: Natural Conditions, Resources, Economy, Population, Geo-Ecological Condition (Peremena, Volgograd, 2011) [in Russian].