TY JOUR TI THEORETICAL STUDIES OF PROCESSES IN A ROTARY MILL WITH COMBINED EFFECTS ON A REDUCED MATERIAL KW microdispersion of polydisperse particles KW calculation of energy costs JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Sevost'yanov, V.S. AU Kachaev, A.E. AU Boychuk, I.. AU Kuznecova, I.A. PY 2017 IS 2 PB Belgorod State Technological University named after V.G. Shukhov