TY JOUR TI ANALYSIS OF THE NATURE AND IMPACT OF THE MAIN NATURAL-PRODUCTION PROCESS FACTORS ON MOBILE SKIDDING CABLE SYSTEMS IN MOUNTAINOUS LOGGING KW primary forest transportation KW hauling wood KW timber. JO Actual directions of scientific researches of the XXI century: theory and practice AU Bondarenko, A.. AU Chernykh, A.S. AU Abramov, V.V. AU Serebryanskiy, A.I. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov