TY JOUR TI INFORMATION MODELING IN PLANNING THE CUTTING OF TIMBER KW Symmetric set KW Aksenov KW graph limit thickness KW the digital model data JO Modeling of systems and processes AU Chevychelov, Y.A. PY 2014 IS 7 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov