VAN BEEK, P.; WALSH, T. Principles of Constraint Programming and Constraint Processing: A Review. AI Magazine, [S. l.], v. 25, n. 4, p. 105, 2004. DOI: 10.1609/aimag.v25i4.1790. Disponível em: https://ojs.aaai.org/aimagazine/index.php/aimagazine/article/view/1790. Acesso em: 25 apr. 2024.