For citations:
Xu H., Bazarnova J.G., Balabaev A.A. Effect of ultrasonic treatment of birch bark on betulin yield in extraction from Betula. Proceedings of Universities. Applied Chemistry and Biotechnology. 2025;15(4):487-494. (In Russ.) https://doi.org/10.21285/achb.1013. EDN: HIAWFL

























