1. D. G. Zvyagintsev, “Ultrasonic pretreatment of soils for quantitative counting of microorganisms,” Vestn. Mosk. Univ., Ser. Biol., Pochv., No. 3, 127–129 (1968).
2. P. A. Kozhevin, L. M. Polyanskaya, and D. G. Zvyagintsev, “Development of different microorganisms in soil,” Mikrobiologiya 48, 490–494 (1979).
3. L. V. Kravchenko, A. I. Shaposhnikov, and N. M. Makarova, “The composition of root exudates of the plants and its change in the rhizosphere affected by soil microflora,” S-kh. Biol., No. 3, 71–75 (2011).
4. N. A. Krasil’nikov, Soil Microorganisms and Higher Plants (Academy of Sciences of the Soviet Union, 1958) [in Russian].
5. World Reference Base for Soil Resources 2014, International Soil Classification System for Naming Soils and Creating Legends for Soil Maps (Food and Agriculture Organization of the United Nations, Rome, 2015; Moscow, 2017).