TY JOUR TI The calculation of the tangent tractive effort tractor Lht-100 in transport mode KW tangent tractive effort KW transfer functions KW efficiency of machine-tractor unit JO Actual directions of scientific researches of the XXI century: theory and practice AU Epifanova, A.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov