TY JOUR TI Determination of moment of inertia of the tractor KW tractor KW center of mass KW moment of inertia KW analytic method KW mass ratio KW mass fraction JO Forestry Engineering Journal AU Kochegarov, A.V. AU Belyaev, A.. AU Trishina, T.. PY 2014 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov