SANDHU, Gurninder S.; KUMAR, Deepak. DERIVABLE MAPPINGS AND COMMUTATIVITY OF ASSOCIATIVE RINGS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 40, p. 376–393, 2018. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7016. Acesso em: 17 oct. 2026.