TY JOUR TI Perspective directions of development of mathematical models in the field of flexible timber processes timber companies KW lower timber depots KW flexible wood-working processes KW low-grade wood KW wood modification. JO Actual directions of scientific researches of the XXI century: theory and practice AU Kunitskaya, O.A. AU Simonyan, S.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov