Urashima, A.S. 2002. Variation in virulence in the rice blast fungus <i>Magnaporthe grisea</i> in São Paulo State. Pesquisa Agropecuaria Brasileira. 37, 1 (Jan. 2002), 109–115. DOI:https://doi.org/10.1590/S1678-3921.pab2002.v37.6318.