Assumpção, Mayra Elena Ortiz D'’Avila, et al. “Influence of the Development Phase of the Dominant Follicle on the Superovulatory Response in Nelore Heifers”. Brazilian Journal of Veterinary Research and Animal Science, vol. 36, no. 6, Jan. 1999, pp. 300-3, https://doi.org/10.1590/S1413-95961999000600004.