1. Bykov, A.V., Bukhareva, O.A., and Kolesnikov, A.V., The influence of fires on natural Blackthorn Stands in Lake Depressions of the Caspian lowland, Lesovedenie, 2013, no. 2, pp. 31–37.
2. Dimeyeva, L.A., Mechanisms of primary successions on the Caspian Sea coast, Arid Ecosyst., 2011, vol. 1, no. 3, pp. 149–158.
3. Doskach, A.G., Prirodnoe raionirovanie Prikaspiiskoi polupustyni (Nature Zoning of Pre-Caspian Semidesert), Moscow: Nauka, 1979.
4. Karta rastitel’nosti Evropeiskoi chasti SSSR, M 1: 2500000 (Map of Vegetation of European Part of USSR, Scale 1: 2500000), Isachenko, T.I. and Lavrenko, E.M., Eds., Moscow: Gos. Uprav. Geodez. Kartogr., 1974.
5. Landshaftnaya karta SSSR, M 1: 2500000 (Landscape Map of USSR, Scale 1: 2500000), Gudilina, I.S., Ed., Moscow: Gos. Uprav. Geodez. Kartogr., 1987