%0 Journal Article %T Perspective directions of researches of influence of parameters roaming packs on the environmental effectiveness of the process of skidding %A Nikiforova, A.. %A Rudov, M.. %K timber harvesting, energy, eco-efficiency, soil compaction. %J Actual directions of scientific researches of the XXI century: theory and practice %D 2015 %N 3 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov