TY JOUR TI Increase of efficiency of cars(machines) for crushing of stubs KW forest reconstruction KW plot maker KW working organ KW work process KW soil KW stump JO Actual directions of scientific researches of the XXI century: theory and practice AU Druchinin, D.Y. AU Pozdnyakov, E.. AU Malyukov, S.V. AU Shavkov, M.V. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov