V. DURAI MURUGAN; R. SEETHALAKSHMI; P. NAMASIVAYAM. A Study on Complementedness in the Subgroup Lattices of $2\times 2$ Matrices Over $Z_{11}$. International Journal of Mathematics And its Applications, [S. l.], v. 9, n. 1, p. 63–65, 2021. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/102. Acesso em: 7 may. 2024.