Resistance of Pear Cultivars in Oregon to Natural Fire Blight Infection. Journal of the American Pomological Society, [S. l.], v. 53, n. 2, p. 110–115, 1999. DOI: 10.71318/apom.1999.53.2.110. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2353. Acesso em: 12 dec. 2025.