TY CONF TI ABOUT A COMPLEX OF MACHINES FOR PRODUCING ENERGY WOOD IN FOREST FELLING CONDITIONS KW conical cutter KW chopping machine KW energy wood KW wood waste grinding JO MODERN FORESTRY COMPLEX OF THE COUNTRY: INNOVATIVE DEVELOPMENTS AND PROGRESSIVE TECHNOLOGIES AU Fokin, S.V. AU Shport'ko, O.N. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov