TY JOUR TI Influence of knots on strength of small–diameter pine logs under parallel to the grain compression KW рine logs KW knot KW loading along fibers KW tensile strength JO Actual directions of scientific researches of the XXI century: theory and practice AU Buyskikh, N.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov