TY JOUR TI The influence of vibration on the friction angle of the soil by working body KW friction coefficient KW friction angle KW draft resistance KW body working plow KW vibration of working body JO Forestry Engineering Journal AU Vasilenko, S.. AU Vasilenko, V.. AU Afonichev, D.N. AU Sturov, D.. PY 2013 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov