Sobiczewski, P.; Bubán, T. The Effect of Regalis® (prohexadione Calcium) on the Reduction of Fire Blight (Erwinia Amylovora) Severity in Apple Trees. Int. j. hortic. sci. 2004, 10 (2), 61-66. https://doi.org/10.31421/IJHS/10/2/462.