1. Zalikhanov M.Ch., Losev K.S., Shelekhov A.M. Natural ecosystems as a crucial natural resource of mankind. Bulletin of the Russian Academy of Sciences. 2006; 7: 612–614. (In Russ.)
2. Pavlov D.S., Striganova B.R., Bukvareva E.N. The environment oriented concept of nature use. Bulletin of the Russian Academy of Sciences. 2010; 80(2): 131–140 (In Russ.)
3. Lavrenko E.M. The steppes of the USSR. Vegetation of the USSR. Moscow; Leningrad? 1940; 2. (In Russ.)
4. Muhsketov I.V. Geological researches in the Kalmyk steppe in 1884–1885 St. Petersburg, 1885. (In Russ.)
5. Sludsky A.A. Jute in the Eurasian steppes and deserts. Tr. Institute of Zoology of the Kazakh SSR. Alma-Ata, 1963; 20: 5–88. (In Russ.)
6. Kirikov S.V. The Person and the nature of the steppe zone. Moscow, 1983. (In Russ.)
7. Seton E.T. Lives of game animals. Boston, 1953; 3.
8. Petrides G.A. The management of wild hoofed animals in the United States in relation to land use. Terre et vie. 1961; 108(2/3): 181–202.
9. Buchner H.K. Regulation of numbers of pronghorn antelope in relation land use. Terre et vie. 1961; 108(2/3): 266–285.
10. Uatt K. Ehkologiya i upravlenie prirodnymi resursami. M., 1971. [Watt K. The Ecology and management of natural resources. Moscow, 1971. (In Russ.).]
11. Vereshchagin N.K., Gromov I.M. Formation of theriofauna in the Quaternary. The success of modern mammals. Moscow, 1977; 32–45. (In Russ.)
12. Abaturov B.D. A type of Pasture functioning of steppe and desert ecosystems. Advances in modern biology. 2006; 126(5): 435–447 (In Russ.)
13. Pachosky I.K. Description of the vegetation of Kherson province. Kherson, 1917. (In Russ.)
14. Semenov-Tian-Shansky M.A. The Accumulation and role of litter in herbaceous communities. Leningrad, 1977. (In Russ.)
15. Didukh Ya.P. What we must protect in steppe nature reserves. Steppe bulletin. 2014; 40: 8–10 (In Russ.)
16. Bystritskaya T.L., Osychnyuk V.V. Soils and primary biological productivity of steppes. M., 1975. (In Russ.)
17. Abaturov B.D, Kulakova N.Yu. The role of grazing animals and steppe fires in the cycle of nitrogen and ash elements in the steppe pasture ecosystems. Arid ecosystems. 2010; 16(2): 54–64 (In Russ.)
18. Gunin P.D. Ecology of desertification processes of arid ecosystems. Moscow, 1990. (In Russ.)
19. Zarudny N. Notes on the fauna of mammals of the Orenburg region. Materials to knowledge of fauna and flora of the Russian Empire. Otd. zoological. 1897; 3. (In Russ.)
20. Abaturov B.D. Mammals as a component of ecosystems. Moscow, 1984. (In Russ.)
21. Abaturov B.D., Zubkova L.V. The Role of small ground squirrels (Citellus Rodney Pall.) in the formation of the Western microrelief and soils in the Northern Caspian. Pedology. 1972; 5: 59–67. (In Russ.)
22. Formosov A.N. Mammalia in the steppe biocenose. Ecology. 1928; 9(4): 449–460.
23. Dmitriev P.P. Mammals in steppe ecosystems of Inner Asia. Moscow, 2006. (In Russ.)