Ragozzino, E., F. Faggioli, G. Amatruda, and M. Barba. “Occurrence of Dapple Fruit of Plum in Italy”. Phytopathologia Mediterranea 41, no. 1 (April 1, 2002): 72–75. Accessed July 22, 2024. https://oajournals.fupress.net/index.php/pm/article/view/4949.