Ivshina, I. ., Tarasova, E. ., Tolmacheva, I. ., & Grishko, V. . (2017). CHEMICAL AND ENZYMATIC SYNTHESIS OF BIOLOGICALLY ACTIVE COMPOUNDS BASED ON BETULIN. Perm Federal Research Centre Journal, 2, 46-53. https://journal.permsc.ru/index.php/pscj/article/view/PSCJ2017n2p6