Orosz-Kovács, Zs., A. Farkas, T. Bubán, P. Bukovics, E. Nagy Tóth, and H. Déri. 2004. “Floral Biological Investigations of Apple Cultivars in Relation to Fire Blight”. International Journal of Horticultural Science 10 (2):9-14. https://doi.org/10.31421/IJHS/10/2/454.