SHATERY, T.L.; HEJAZIAN, S. A CHARACTERIZATION OF HIGHER DERIVATIONS ON BANACH ALGEBRAS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 32, p. 595–602, 2014. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6170. Acesso em: 26 jul. 2026.