EL BAKKALI, Abdeslam; TAJMOUATI, Abdelaziz; BABA, Mohamed Ahmed Mohamed. SOME NEW PROPERTIES ON λ-COMMUTING OPERATORS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 41, p. 149–157, 2019. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7141. Acesso em: 27 oct. 2026.