NAOUM, A. G.; AL-AUBAIDY, W. K. Actions of finite groups on commutative rings I. Tamkang Journal of Mathematics, [S. l.], v. 34, n. 3, p. 201–212, 2003. DOI: 10.5556/j.tkjm.34.2003.311. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/311. Acesso em: 24 apr. 2024.