BELHADI, Ahfouda; MANSOUR, Abdelouahab; SALMI, Abdelouahab. Some Drazin invertible elements in Banach algebras and applications to operator equations solutions. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 42, p. 428–435, 2019. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7224. Acesso em: 28 oct. 2026.