TY JOUR TI Efficient and environmentally friendly technologies of stumps removal on fellings KW reforestation KW felling KW removal of stumps KW chopping of wood KW abrasive wear JO Forestry Engineering Journal AU Pozdnyakov, E.. PY 2014 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov