M. O. El-Kayal, M. N. Sayed, N. D. Mortada, and S. Elkheshen, “Development and validation of a simple and rapid UPLC method for the in-vitro estimation of (-)-epigallocatechin-3-gallate in lipid-based formulations”, Eur. J. Chem., vol. 9, no. 1, pp. 7–12, Mar. 2018.