@article{Protas2014analytical, author={Protas, P.. and , ..}, title={Analytical study of the process interaction of wheel skidding machines with a bundle of whips and dragged}, 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={256-260}, volume={2}, issue={5}, }