TY JOUR TI Optimization of primary timber transportation in the mountains harvesting KW primary wood transport KW mountain logging KW optimization KW technical and technological parameters of the process JO Actual directions of scientific researches of the XXI century: theory and practice AU Chernykh, A.S. AU Abramov, V.V. AU Bondarenko, A.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov