1. V. M. Alifanov, L. A. Gugalinskaya, and A. Yu. Ovchinnikov, “The formation of parent materials of the Holocene soils in the center of the East European Plain,” Probl. Reg. Ekol., No. 4, 55–59 (2015).
2. V. M. Andreeva, Soil and Aerophilic Green Algae (Chlorophyta: Tetrasporales, Chlorococcales, and Chlorosarcinales) (Nauka, St. Petersburg, 1998) [in Russian].
3. E. V. Arinushkina, Handbook on the Chemical Analysis of Soils (Moscow State Univ., Moscow, 1961) [in Russian].
4. A. G. Blagodatnova, “Cyanobacterial–algal cenoses as the reflection of paleoecological features of Holocene soils,” Vestn. Novosibirsk. Gos. Pedagog. Univ., No. 2 (18), 163–169 (2014).
5. T. S. Demkina, A. V. Borisov, and V. A. Demkin, “Microbiological study of paleosols buried under kurgans in the desert-steppe zone of the Volga–Don interfluve,” Eurasian Soil Sci. 37, 743–748 (2004).