@article{Derbin 2015technology, author={Derbin , V.. and Derbin, M.V.}, title={Technology of timber harvesting with preservation of undergrowth}, journal={Forestry Engineering Journal}, publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov}, year={2015}, pages={136-143}, volume={5}, issue={1}, }