1. A. I. Vvedenskii, Flora of Uzbekistan [in Russian], Vol. 1, AS UzSSR, Tashkent (1962), p. 220.
2. J. B. Harborne, Phytochemistry, 25, 1887 (1986).
3. Plant Resources: Flowering Plants, Their Chemical Composition, Use [in Russian], Vol. 8, Moscow (1984), p. 137.
4. D. O. Yusufzhonova and S. F. Aripova, in: Abstracts of the Conference Chemistry in the Economy [in Russian], RF, Moscow (2020), p. 34.
5. M. Kates, Techniques of Lipidology: Isolation, Analysis, and Identification of Lipids, Elsevier, New York (1972), 610 pp.