ABUJABAL, H. A. S.; ASHRAF, M. COMMUTATIVITY THEOREMS FOR RINGS WITH CONSTRAINTS ON COMMUTATORS. Tamkang Journal of Mathematics, [S. l.], v. 26, n. 1, p. 25–29, 1995. DOI: 10.5556/j.tkjm.26.1995.4375. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4375. Acesso em: 4 may. 2024.