Kavalcová, P. .; Bystrická, J. .; Tomáš, J. .; Karovičová, J. .; Kuchtová, V. . Evaluation and Comparison of the Content of Total Polyphenols and Antioxidant Activity in Onion, Garlic and Leek. Potr. S. J. F. Sci. 2014, 8, 272-276.