Vargas Júnior, Sergio Farias, et al. “Bovine Sperm Cell Motility After Incubation in Follicular Fluid”. Pesquisa Agropecuaria Brasileira, vol. 53, no. 7, Oct. 2018, pp. 866-9, doi:10.1590/S1678-3921.pab2018.v53.25943.