Camargo, L.S. de A. et al. 2002. Effect of sperm concentration and incubation period of oocyte-spermatozoa on <i>in vitro</i> fertilization in the Gir breed. Pesquisa Agropecuaria Brasileira. 37, 5 (May 2002), 709–715. DOI:https://doi.org/10.1590/S1678-3921.pab2002.v37.6393.