Magyar, L., and K. Hrotkó. “Growth and Productivity of Plum Cultivars on Various Rootstocks in Intensive Orchard”. International Journal of Horticultural Science 12, no. 3 (June 20, 2006): 77–81. Accessed August 7, 2022. https://ojs.lib.unideb.hu/IJHS/article/view/663.