KUMARI, P.; SAHAI, M.; SHARMA, R. K. Jordan regular units in rings and group rings. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 75, n. 3, p. 351–363, 2023. DOI: 10.37863/umzh.v75i3.1130. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1130. Acesso em: 5 dec. 2025.