A. B. Aristarkhova, Izv. Akad. Nauk SSR, Ser. Geogr., No. 4, 67–73 (1980).
S. A. Vladychenskii, Soil-Reclamation Studies in the Volga-Akhtuba Floodplain and the Volga Estuary (Mosk. Gos. Univ., Moscow, 1953) [in Russian].
L. A. Vorob’eva, Chemical Analysis of Soils (Mosk. Gos. Univ., Moscow, 1998) [in Russian].
T. I. Evdokimova and K. I. Korneeva, “Soils of the Western Volga Estuary and Near-Estuary Lakes,” in Soil-Reclamation Studies in the Volga-Akhtuba Floodplain and the Volga Estuary (Mosk. Gos. Univ., Moscow, 1958), pp. 80–82 [in Russian].
L. O. Karpachevskii, “Capillary Rise of Salt Solutions in Layered Soils,” Dokl. Vyssh. Shk., No. 3, 23–28 (1959).
E. I. Pankova, L. A. Vorob’eva, and I. M. Gadzhiev, et al., Saline Soils of Russia (Akademkniga, Moscow, 2006) [in Russian].
V. N. Pilipenko, A. L. Sal’nikov, and S. N. Perevalov, Current Flora of the Volga River Estuary (Astrakhan, 2002), pp. 21–22.
B. B. Polynov, Selected Works (Akad. Nauk SSSR, Moscow, 1956) [in Russian].
E. I. Rudenko, Enigmas of the Baer Hillocks (Volgograd, 1973) [in Russian].
B. A. Fedorovich, “Genesis of the Baer Hillock in the Caspian Region,” Izv. Akad. Nauk SSR, Ser. Geogr. Geophys., No. 1 (1941).