AL-THANI, H. M. J. . Weak radical classes. Tamkang Journal of Mathematics, [S. l.], v. 35, n. 4, p. 359–370, 2004. DOI: 10.5556/j.tkjm.35.2004.194. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/194. Acesso em: 4 may. 2024.