TY JOUR TI Mathematical software of CAD systems of facilities of industrial and transport infra-structure in timber industry KW optimization parameters KW felling KW spur branches KW spur roads KW loading points KW turning hair-pin bends KW prefabricated pavements JO Forestry Engineering Journal AU Danilov, A.. AU Afonichev, D.N. AU Petrovskiy, V.. PY 2014 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov