CHALOM, Gladys; FERRAZ, Raul A.; MILIES, C. Polcino. Essential idempotents and simplex codes. Journal of Algebra Combinatorics Discrete Structures and Applications, [S. l.], v. 4, n. 2, p. 181–188, 2017. Disponível em: https://jacodesmath.com/index.php/jacodesmath/article/view/67. Acesso em: 3 sep. 2026.