LENAT, D. B. The Voice of the Turtle: Whatever Happened to AI?. AI Magazine, [S. l.], v. 29, n. 2, p. 11, 2008. DOI: 10.1609/aimag.v29i2.2106. Disponível em: https://ojs.aaai.org/index.php/aimagazine/article/view/2106. Acesso em: 7 mar. 2021.