TY JOUR TI Calculation of wheel forest machines traction characteristics with wes-method KW traction characteristics KW wheeled mover KW forest soils KW deformation modulus KW cone index JO Forestry Engineering Journal AU Nikiforova, A.. AU Khakhina, A.M. AU Khitrov, E.. AU Grigorev, I.V. AU Grigoreva, O.I. PY 2016 IS 6 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov