Barros, Janne Paula Neres de, et al. “Action of Exogenous Oxytocin on Stress Modulation in Crossbred Red Angus Cows”. Semina: Ciências Agrárias, vol. 37, no. 5, Oct. 2016, pp. 3209-14, doi:10.5433/1679-0359.2016v37n5p3209.