@article{Krupko2015optimization, author={Krupko, A.. and Krupko, N..}, title={Optimization of transport costs timber enterprises through minimization empty runs}, 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={2015}, pages={243-246}, volume={3}, issue={2}, }