TY CONF TI ENERGY RESOURCE-SAVING PLANT FOR EXTRACTION OF BIOLOGICALLY ACTIVE SUBSTANCES KW birch KW birch bark KW wood KW betulin KW biologically active substances KW wood waste JO Modern machines, equipment and IT solutions for industrial complex: theory and practice AU Abdullina, D.R. AU Valeev, K.V. AU Safin, R.G. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov