TY JOUR TI Research of structure and properties of wood and polymeric compositions on the basis of bark of coniferous breeds of wood KW polymers KW softwood bark KW pressing KW strength and density JO Actual directions of scientific researches of the XXI century: theory and practice AU Krivorotova, A.. AU Usoltsev, O.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov