LEE, Edmond W. H. Maximal Clifford Semigroups of Matrices. Sarajevo Journal of Mathematics, [S. l.], v. 2, n. 2, p. 147–152, 2024. DOI: 10.5644/SJM.02.2.02. Disponível em: https://www.sjm.anubih.ba/index.php/sjm/article/view/412. Acesso em: 26 jan. 2026.