ZADEH, L. A. Precisiated Natural Language (PNL). AI Magazine, [S. l.], v. 25, n. 3, p. 74, 2004. DOI: 10.1609/aimag.v25i3.1778. Disponível em: https://ojs.aaai.org/index.php/aimagazine/article/view/1778. Acesso em: 26 jan. 2021.