TY JOUR TI Analytical study of the process of destruction of soil layer machines for digging with active working bodies KW Planting material KW wikopedia machine KW the working body KW beat KW traivel KW formation of soil KW bending moment KW bending stress JO Forestry Engineering Journal AU Kazakov, V.. AU Kazakov, I.. PY 2015 IS 5 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov