Madureira Brasil, Edward, and Yvo de Carvalho. “Maize Hybrids Performance in Relation to <i>Phaeosphaeria maydis< i> In Different Sowing Times”. Pesquisa Agropecuaria Brasileira, vol. 33, no. 12, Dec. 1998, pp. 1977-81, doi:10.1590/S1678-3921.pab1998.v33.5024.