TY  JOUR
TI  Change of pine wood density on trunk radius in forest steppe zone
KW  annual rings of wood
KW  macrostructure
KW  percentage of late wood
KW  density
JO  Actual directions of scientific researches of the XXI century: theory and practice
AU  Kiseleva, A.V.
PY  2014
IS  2
PB  FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov