The $L^*$ Partial Order on the Set of Group Matrices. Communications in Mathematical Research, [S. l.], v. 37, n. 4, p. 462–483, 2022. DOI: 10.4208/cmr.2021-0012. Disponível em: https://global-sci.com/index.php/cmr/article/view/9059. Acesso em: 5 dec. 2025.