1. V. A. Perov, E. E. Andreev, and L. F. Bilenko, Ore Crushing, Grinding, and Screening [in Russian] Nedra, Moscow (1990).
2. A. V. Kiryushin and I. A. Shestakov, “Effect of ball hardness on ore grinding indices in ball mills,” Obogash. Rud, No. 5, 3–4 (1990).
3. N. M. Vavilkin and V. V. Chelnokov, “Choice of material for manufacturing grinding balls,” Izv. Vyssh. Uchebn. Zaved., Chern. Met., No. 1, 41–46 (2002).
4. V. A. Ignatov, V. K. Solenyi, A. I. Yarmolenko, et al., “Choice and development of rational forms of grinding bodies for raw material refinement,” Metall Lit’e Ukrainy, No. 1/2, 23–27 (2002).
5. N. P. Dyubin, A. N. Zannes, I. Z. Tsilevich, et al., “Production of grinding balls at the Azovstal plant,” Met. Gornorud. Prom., No. 4, 77–81 (1962).