1. A. M. Adzhiev and M. A. Balamirzoev, et al., Soil Resources of the Dagestan, Their Conservation, and Rational Use (Makhachkala, 1998) [in Russian].
2. A. M. Adzhiev, E. M. Mirzoev, M. A. Balamirzoev, and A. K. Saidov, “The Barchan Agroecological Program on the Control of Land Desertification in the Western Caspian Region,” Arid. Ekosistemy, No. 9, 63–67 (1998).
3. O. V. Andreeva, Extended Abstract of Candidate’s Dissertation in Biology (2002).
4. N. N. Banasevich, S. V. Zonn, T. I. Kazmina, and N. I. Makkaveev, “Salinization and Desalinization of Soils in Relation with Groundwater, Their Salinization, and the Effect of Caspian Sea,” Tr. LOVIUA (Makhachkala), No. 29 (1934).
5. B. V. Vinogradov and T. A. Tolchain, “Outline of the Dagestan Vegetation,” in Data for Planning the Use of Water Resources of the Dagestan (Makhachkala, 1932), No. 3, p. 47.