Filho, K. E., de Figueiredo, G. R. and Euclides, V. P. B. (1995) “Production efficiency of beef cows with different milk yield potentials”, Pesquisa Agropecuaria Brasileira, 30(7), pp. 1003–1007. doi: 10.1590/S1678-3921.pab1995.v30.4390.