Honty, K., Z. Boldog, M. Göndör, J. Papp, K. Kása, and M. Hevesi. “Reactions of Different Plant Organs of Pear Cultivars to Erwinia Amylovora Infection”. International Journal of Horticultural Science, vol. 9, no. 1, Apr. 2003, pp. 17-21., doi:10.31421/IJHS/9/1/369.