BRITTO, J. On Defining a Subgroup of the Special Linear Group by a Congruence. The Journal of the Indian Mathematical Society, [S. l.], v. 40, n. 1-4, p. 235–243, 1976. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/16629. Acesso em: 5 may. 2024.