TY JOUR TI Mathematical model of optimum use of wood waste KW integrated use of wood KW transportation problem KW objective function JO Actual directions of scientific researches of the XXI century: theory and practice AU Pilnik, Y.N. AU Burmistrova, O.N. AU Motryuk, E.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov