Hegedűs, A. “Review of the Self-Incompatibility in Apple (Malus X Domestica Borkh., syn.: Malus Pumila Mill.)”. International Journal of Horticultural Science 12, no. 2 (April 19, 2006): 31–36. Accessed April 27, 2024. https://ojs.lib.unideb.hu/IJHS/article/view/632.