LOHAJ, M.; LOHAJ, S. Quasi-Diagonal Operators. Sarajevo Journal of Mathematics, [S. l.], v. 6, n. 2, p. 229–235, 2024. DOI: 10.5644/SJM.06.2.07. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/318. Acesso em: 15 oct. 2024.