Holb, I. J., I. Gonda, and K. Bitskey. “Pruning and Incidences of Diseases and Pests in Environmentally Oriented Apple Growing Systems: Some Aspects”. International Journal of Horticultural Science 7, no. 1 (March 21, 2001): 24–29. Accessed November 22, 2024. https://ojs.lib.unideb.hu/IJHS/article/view/243.