%0 Journal Article %T INVESTIGATION OF THE TRACK FORMATION PROCESS AND ITS STABILITY DURING THE OP-ERATION OF FOREST MACHINES AND SKIDDING SYSTEMS ON THE SLOPES OF THE THAWED SOIL %A Kalyashov, V.A. %A Shapiro, V.Y. %A Grigorev, I.V. %A Kunitskaya, O.A. %A Grigoreva, O.I. %A Storodubtseva, T.N. %K permafrost soils, rutting, forest machines, logging, slope forests %J Forestry Engineering Journal %D 2021 %N 11 %P 11 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov