%0 Journal Article %T About fractional composition of wood fuel used for energy purposes %A Fokin, S.. %K chips, grinding forest residues, fuelwood %J Actual directions of scientific researches of the XXI century: theory and practice %D 2015 %N 3 %P 5 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov