Rudov et al. S. Method of Variational Calculation of Influence of the Propulsion Plants of Forestry Machines upon the Frozen and Thawing Soil Grounds. IJAST [Internet]. 2019Oct.11 [cited 2026Jun.12];28(9):179 -17. Available from: http://sersc.org/journals/index.php/IJAST/article/view/791