RHALY JR., H. C. Posinormality, Coposinormality, and Supraposinormality for Some Triangular Operators. Sarajevo Journal of Mathematics, [S. l.], v. 12, n. 1, p. 125–140, 2024. DOI: 10.5644/SJM.12.1.09. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/203. Acesso em: 15 oct. 2024.