Chacur, M.G.M. et al. 2010. Effects of lower doses of cloprostenol intramuscular or into vulvar submucosa on estrus induction and pregnancy rates in Nelore cows. Semina: Ciências Agrárias. 31, 2 (Jul. 2010), 451–458. DOI:https://doi.org/10.5433/1679-0359.2010v31n2p451.