TY JOUR TI THERMOCHEMICAL PROCESSING OF SUNFLOWER HUSKS KW pyrolysis KW vegetable raw materials KW biofuel. JO Vestnik of Kazan State Agrarian University AU Har'kov, V.V. AU Tuncev, D.V. AU Kuznecov, M.G. PY 2018 IS 13 PB Kazan state agrarian University