TY JOUR TI Mathematical modeling of specific power inputs and expenditures of labour of timber transport KW specific power inputs KW specific expenditures of labour KW mathematical modeling KW mathematical modeling KW timber transport. JO Actual directions of scientific researches of the XXI century: theory and practice AU Kolominova, M.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov