Toledo, C., A. Girardi, G. Toniollo, C. M. Orlandi, and M. R. Machado. “Morphology of Pêga Jennies Term Placenta and Its Fetal-Maternal Interface”. Brazilian Journal of Veterinary Research and Animal Science, Vol. 52, no. 3, Sept. 2015, pp. 195-04, doi:10.11606/issn.1678-4456.v52i3p195-204.