@article{Krasnova2014investigation,
author={Krasnova, V.. and Sergeeva, N..},
title={Investigation of volume of output of lumber when cutting of round timber from the ring defeat},
journal={Actual directions of scientific researches of the XXI century: theory and practice},
publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov},
year={2014},
pages={370-374},
volume={2},
issue={3},
}