I. R. Fernandes, “Macroscopic and microscopic analysis of 2 embryos and 1 foetus derived from a sheep (Ovis aries) without breed”, Braz. J. Vet. Res. Anim. Sci., vol. 54, no. 2, pp. 168–177, Aug. 2017, doi: 10.11606/issn.1678-4456.bjvras.2017.122010.