TY JOUR TI Elements of discrete modeling of technological processes management KW technological process KW processing step KW state vector KW parameters of the product JO Actual directions of scientific researches of the XXI century: theory and practice AU Ptashnyy, O.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov