Kondrateva , I. A., I. D. Borodulina, and Y. A. Zubarev. “The Content of Carotenoids in the Fruits of Sea Buckthorn in the Forest-Steppe Zone of Altai Krai”. Проблемы ботаники Южной Сибири и Монголии, Vol. 19, no. 2, Oct. 2020, pp. 011-4, doi:10.14258/pbssm.2020065.