Persely, Sz., M. Ladányi, J. Nyéki, Z. Szabó, M. Soltész, and I. Ertsey. “Comparison of Pear Production Areas from Yield Risk Aspect”. International Journal of Horticultural Science 16, no. 4 (August 16, 2010): 25–28. Accessed April 27, 2024. https://ojs.lib.unideb.hu/IJHS/article/view/911.