Blackwell, C. “Thomas Aquinas Against the Scotists and Platonists: The Definition of Ens: Cajetano, Zimara, Pererio 1495-1576”. Verbum – Analecta Neolatina, vol. 6, no. 1, Apr. 2004, pp. 179-88, doi:10.1556/verb.6.2004.1.14.