Sehic, J., H. Nyboom, L. Garkava-Gustavsson, A. Patocchi, M. Kellerhals, and B. Duffy. 2009. “Fire Blight (Erwinia Amylovora) Resistance in Apple Varieties Associated With Molecular Markers”. International Journal of Horticultural Science 15 (1-2): 53-57. https://doi.org/10.31421/IJHS/15/1-2/812.