TY JOUR TI Mathematical Substantiation of technological process of separation of forest seed HEAP KW seed mass KW disc separator KW elimination of impurities KW options JO Voronezh Scientific-Technical Bulletin AU Novikov, A.I. PY 2015 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov