TY CONF TI FACTOR ANALYSIS OF FOREST MACHINERY FOR TRACTOR SKIDDING KW forest machines KW skidding KW factor analysis JO PHYSICAL BASIS OF SCIENCE-INTENSIVE TECHNOLOGIES IN THE MODERN WORLD AU Chetverikova, I.V. AU Zimarin, S.V. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov