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3. G. S. Bazykina and O. S. Boiko, “Moisture regime of typical chernozems under the mown steppe and plowland of Kursk oblast under the anomalous weather conditions of the last decades,” Eurasian Soil Sci. 43 (1), 49–61 2010.
4. G. S. Bazykina and S. V. Ovechkin, “Migration-mycelial e chernozems of various ecosystems affected by abnormal weather conditions in the recent decades,” in Degradation of Rainfed and Irrigated Chernozems Affected by Overmoistening and Their Reclamation n (APR, Moscow, 2012), pp. 90–106.
5. A. F. Bol’shakov, Water Balance of Deep Chernozems of the Central Russian Upland (Academy of Sciences of Soviet Union, Moscow, 1961) [in Russian].