TY JOUR TI The development of transmissions for tracked forest machines KW tracked vehicles KW transmission KW agility KW passability KW speed KW propulsor JO Actual directions of scientific researches of the XXI century: theory and practice AU Kolisov, O.. AU Kryuchin, K.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov