RAZA, Mohd Arif; KHAN, Mohammad Shadab; REHMAN, Nadeem ur. Derivations of rings and Banach algebras. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 42, p. 141–153, 2019. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7252. Acesso em: 27 oct. 2026.