TY JOUR TI Approach to an assessment of quality of a preparatory work of logging KW preparatory works KW forest logging KW quality JO Actual directions of scientific researches of the XXI century: theory and practice AU Lukashevich, V.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov