Fernandes, Isabella Rodrigues, et al. “Macroscopic and Microscopic Analysis of 2 Embryos and 1 Foetus Derived from a Sheep (Ovis Aries) Without Breed”. Brazilian Journal of Veterinary Research and Animal Science, vol. 54, no. 2, Aug. 2017, pp. 168-77, https://doi.org/10.11606/issn.1678-4456.bjvras.2017.122010.