%0 Journal Article %T Mathematical software of CAD systems of facilities of industrial and transport infra-structure in timber industry %A Danilov, A.. %A Afonichev, D.N. %A Petrovskiy, V.. %K optimization parameters, felling, spur branches, spur roads, loading points, turning hair-pin bends, prefabricated pavements %J Forestry Engineering Journal %D 2014 %N 4 %P 5 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov