Szecskó, V., A. Csikós, and K. Hrotkó. “Propagation of Plum Rootstocks by Hardwood Cuttings”. International Journal of Horticultural Science 9, no. 1 (April 14, 2003): 23-28. Accessed September 25, 2020. https://ojs.lib.unideb.hu/IJHS/article/view/370.