TY JOUR TI EFFECT OF SPENT ENGINE OIL WITH ADDITIVES ON WATER AND BIO RESISTANCE OF BIRCH AND PINE WOOD KW wood KW impregnation composition KW water absorption KW swelling KW inorganic filler KW oak bark flour JO Forestry Engineering Journal AU Belchinskaya, L.I. AU Zhuzhukin, K.V. AU Novikova, L.A. AU Dmitrenkov, A.I. AU Sedlyachek, Y.. PY 2018 IS 8 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov