@article{Derbin 2014improvement, author={Derbin , V.. and Derbin, M.V.}, title={Improvement of the technology of wood harvesting with undergrowth preservation}, 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={91-96}, volume={2}, issue={5}, }