N. . Hudz, R. . Ivanova, J. . Brindza, O. . Grygorieva, Z. . Schubertová, and E. . Ivanišová, “Approaches to the determination of antioxidant activity of extracts from bee bread and safflower leaves and flowers”, Potr. S. J. F. Sci., vol. 11, no. 1, pp. 480–488, Jul. 2017.