TY JOUR TI DETERMINING THE WEIGHT OF LOAD-GRIPPING CUTTING MECHANISM FOR BALLOON SKIDDING SYSTEM KW balloon skidding KW balloon-cable system KW load-gripping mechanism KW vertical removal of stand KW aerial skidding KW cut of tree branches JO Forestry Engineering Journal AU Abuzov, A.V. AU Kunitskaya, O.A. PY 2020 IS 10 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov