TY JOUR TI Substantiation of constructive parameters of glued laminated lumber using softwoods KW softwood timber KW aspen KW thermal conductivity of laminated veneer lumber KW strength KW method of gluing KW operating properties JO Actual directions of scientific researches of the XXI century: theory and practice AU Titunin, A.. AU Zaytseva, K.. AU Titunin, A.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov