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2. N. I. Bazilevich and E. I. Pankova, “Classification of soils by the content of toxic salts and ions,” Byull. Pochv. Inst. im. V.V. Dokuchaeva, No. 5, 36–40 (1972).
3. Salt-Affected Soils of Russia (Akademkniga, Moscow, 2006) [in Russian].
4. E. N. Ivanova and N. N. Rozov, “Classification of soils of the Soviet Union,” in Reports of Soviet Soil Scientists to the VII International Congress in the United States (Academy of Sciences of Soviet Union, Moscow, 1960), pp. 280–288.
5. The Map of Chemical Types of Soil Salinity of the Soviet Union, Scale 1 : 2 500 000 (General Office of Geodesy and Cartography of USSR, Moscow, 1976) [in Russian].