TY JOUR TI Methodology of theoretical calculations of the forces, acting on the cutting edge of age and incremental boers KW age bur KW the theoretical calculations of forces KW the mathematical model of core recovery KW cutting the wood. JO Actual directions of scientific researches of the XXI century: theory and practice AU Klyuev, G.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov