TY JOUR TI RESULTS OF EXPERIMENTAL STUDIES OF THE PROCESS OF CUTTING SOFT WOOD WITH DISC KNIVES KW stamping KW soft rocks KW external loading KW factorial experiment JO Forestry Engineering Journal AU Ivanovskiy, V.P. AU Jujukin, N.V. AU Safarov, K.N. PY 2021 IS 11 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov