1. P. Pilov, A. Miltsin, and V. Olevskyi, Mathematical Modeling and Structure-Extrapolation Analysis in Enrichment Problems (NGU, Dnepropetrovsk, 2011). [in Russian]
2. M. Barskyi, and A. Govorov (1979) Mining Magazine 1, 169–171. [in Russian]
3. P. Lyashchenko, Gravity Methods of Enrichment (Gostoptehizdat, Moscow, 1940). [in Russian]
4. V. Karmazin, V. Karmazin, Magnet, Electrical and Special Methods of Enrichment of Minerals. Vol. 1 (MGGU, Moskow, 2005). [in Russian]
5. V. Karmazin, Ferrous Metals Ore Enrichment (Nedra, Moscow, 1982). [in Russian]