A Predictive Model of the Impact of the Skidding System on Forest Soil in Severe Climatic Conditions Journal title: Lesnoy Zhurnal (Russian Forestry Journal) Authors: S.E. Rudov, V.Ya. Shapiro, I.V. Grigorev, O.A. Kunitskaya, O.I. Grigoreva Subject(s): Technology, Forestry