Russi, Luigi, Massimo Romani, and Luciano Pecetti. “Susceptibility to Rust (Puccinia Sp.) in Cultivars of Italian and Perennial Ryegrass Grown in Two Locations of Italy”. Italian Journal of Agronomy 4, no. 1 (March 31, 2009): 69–77. Accessed November 24, 2024. https://www.agronomy.it/agro/article/view/ija.2009.1.69.