Petrova, S. N., I. A. Maksimova, A. R. Yeshchenko, and Y. M. Mineyeva. “ABOUT TRAINING IN THE DETERMINATION OF TOCOPHEROLS IN VEGETABLE RAW MATERIAL BY HPLC”. Chemistry of Plant Raw Material, no. 3, Oct. 2020, pp. 225-31, doi:10.14258/jcprm.2020037383.