Pistun, Y., S. Mysak, T. Kovalenko, and S. Lys. “Development of the Analytical Method for Determining the Armor Wear of the Drum Ball Mill”. Eastern-European Journal of Enterprise Technologies, vol. 5, no. 1 (89), Oct. 2017, pp. 45-50, doi:10.15587/1729-4061.2017.109629.