Sydora, N. V., A. M. Kovalyova, and I. A. Danylova. “Determination of the Quantitative Content of Procyanidins in Hawthorn Fruits”. Journal of Organic and Pharmaceutical Chemistry 16, no. 4(64) (December 14, 2018): 48–51. Accessed May 2, 2024. https://ophcj.nuph.edu.ua/article/view/ophcj.18.955.