Pfeifer, L. F. M. (2016) “Prostaglandin F2α or estradiol benzoate to induce ovulation in timed artificially inseminated dairy cows”, Pesquisa Agropecuaria Brasileira, 51(6), pp. 738–744. doi: 10.1590/S1678-3921.pab2016.v51.22134.