Euclides Filho, Kepler, et al. “Birth Weight of Nellore Calves: Heritability and Sex X Sire Interaction”. Pesquisa Agropecuaria Brasileira, vol. 16, no. 6, Apr. 2014, pp. 913-8, doi:10.1590/S1678-3921.pab1981.v16.17149.