TY JOUR TI Mathematical software for automation systems of defective whips bucking KW bucking KW whip KW defective wood KW cylindrical volume. JO Actual directions of scientific researches of the XXI century: theory and practice AU Khukhryanskaya, E.S. AU Surikova, M.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov