1. L. G. Bogatyrev, A. V. Ivanov, G. V. Matyshak, and A. A. Stepanov, “The formation of the organic profile of dark humus forest soils in the northeast of Kostroma oblast,” Lesovedenie, No. 3, 8–14 (2006).
2. S. N. Vinogradsky, Soil Microbiology (Academy of Sciences of USSR, Moscow, 1952) [in Russian].
3. T. S. Demkina and T. G. Mirchink, “Determination of fungal biomass in soils by the membrane filtering,” Mikol. Fitopatol. 17 (6), 517–520 (1983).
4. T. G. Dobrovol’skaya, D. G. Zvyagintsev, I. Yu. Chernov, A. V. Golovchenko, G. M. Zenova, L. V. Lysak, N. A. Manucharova, O. E. Marfenina, L. M. Polyanskaya, A. L. Stepanov, and M. M. Umarov, “The role of microorganisms in the ecological functions of soils,” Eurasian Soil Sci. 48, 959–967 (2015).
5. D. G. Zvyagintsev, “Ultrasonic pretreatment of soils for quantitative counting of microorganisms,” Vestn. Mosk. Univ., Ser. Biol., Pochv., No. 3, 127–129 (1968).