TY JOUR TI MODELING THE PROCESS OF REDUCING TREE STUMPS USING SELF-PROPELLED MACHINE BASED ON THE PARTICLE DYNAMICS METHOD KW self-propelled tree dozer KW machine technology of stumping KW method of stumping KW particle dynamics method JO Forestry Engineering Journal AU Pryadkin, V.I. AU Bartenev, I.M. AU Posmetev, V.V. PY 2020 IS 9 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov