Neves, W. C., M. A. Miglino, M. Arrivabene, M. F. Cavalcante Filho, and F. S. Feitosa Jr. “Anatomic Research on the Goat Placenta by Neoprene Injection”. Brazilian Journal of Veterinary Research and Animal Science, vol. 36, no. 1, Jan. 1999, pp. 9-14, doi:10.1590/S1413-95961999000100001.