Hudz, N., K. Korzeniowska, P. P. Wieczorek, Z. Schubertová, J. Brindza, and E. Ivanišová. “Approaches to the Identification and Assay of Flavonoids in Bee Bread Extracts by Spectrophotometric Method”. Agrobiodiversity for Improving Nutrition, Health and Life Quality, no. 1, Nov. 2017, http://sandbox.agrobiodiversity.uniag.sk/scientificpapers/article/view/50.