Ferrão, Romário Gava, et al. “Estimates of Genetic Parameters Among and Within Half-Sib Families in Two Selection Cycles on the EEL2 Maize (<i>Zea mays< I> L.) Population”. Pesquisa Agropecuaria Brasileira, vol. 30, no. 7, July 1995, pp. 957-62, doi:10.1590/S1678-3921.pab1995.v30.4383.