Ferrão RG, Gama EEG, Costa A de FS da, Santos JAC, Ferrão MAG. Estimates of genetic parameters among and within Half-sib families in two selection cycles on the EEL2 maize (Zea mays L.) population. PAB. 1995;30(7):957-962. doi:10.1590/S1678-3921.pab1995.v30.4383