TY JOUR TI Resource-saving approach to design of forest highways KW resource saving KW forest roads KW design KW road construction KW cost JO Actual directions of scientific researches of the XXI century: theory and practice AU Goptarev, S.M. AU Morkovin, V.A. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov