TY JOUR TI Effect of cutting width on the optimum size of bars and boards when cutting sawlogs with sawing three bars of equal thickness and four pairs of side boards KW sawlogs KW method of cutting KW cutting width KW optimality criterion KW objective function KW constraint equation KW the Lagrangian function KW numerical method KW optimal sizes JO Forestry Engineering Journal AU Agapov, A.I. PY 2014 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov