Akim, E. L. “MANUSCRIPTS DO NOT BURN... AND DO NOT AGE... REVIEW OF THE BOOK OF DOCTOR OF CHEMISTRY, PROFESSOR EDUARD IMERIKHOVICH CHUPKA "REDOX TRANSFORMATIONS OF LIGNIN AND CARBOHY-DRATES DURING ALKALINE TREATMENTS OF WOOD"”. Chemistry of Plant Raw Material, no. 3, Oct. 2023, pp. 353-60, doi:10.14258/jcprm.20230313031.