TY JOUR TI Dependencies to evaluate heat of combustion of bark regarding its absolute humidity KW bark of spruce KW pine bark KW birch bark KW calorific value. JO Actual directions of scientific researches of the XXI century: theory and practice AU Chibirev, O.. AU Vlasov, Y.. AU Bastrikov, D.V. PY 2016 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov