Bogo, Amauri, et al. “Relationship Among Entomosporium Severity, Defoliation, and Vegetative-Reproductive Variables in Pear in Brazil”. Pesquisa Agropecuaria Brasileira, vol. 53, no. 8, Oct. 2018, pp. 892-9, doi:10.1590/S1678-3921.pab2018.v53.25898.