TY CONF TI TECHNOLOGICAL ASPECTS OF CREATING A NEW COMPOSITE BIRCH BARK MATERIAL KW wood waste KW birch bark KW technology KW composite material KW processing JO ENERGY-SAVING AND ENVIRONMENTALLY FRIENDLY TECHNOLOGIES IN THE FORESTRY INDUSTRY AU Chernykh, A.S. AU Rublev, I.Y. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov