@article{Vetrov2014regulations,
author={Vetrov, L..},
title={Regulations on inventory of wood bark in the trunks and of assortments birch},
journal={Forestry Engineering Journal},
publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov},
year={2014},
pages={115-118},
volume={4},
issue={2},
}