Papp, N., B. Szilvássy, Z. Szabó, J. Nyéki, É. Stefanovits-Bányai, and A. Hegedűs. “Antioxidant Capacity, Total Phenolics and Mineral Element Contents in Fruits of Hungarian Sour Cherry Cultivars”. International Journal of Horticultural Science 14, no. 1-2. (February 19, 2008): 59-64. Accessed February 22, 2020. https://ojs.lib.unideb.hu/IJHS/article/view/784.