YEN, C.-T. ON A THEOREM OF HERSTEIN: DEDICATED TO PROFESSOR SHIH-TONG TU ON HIS 60TH BIRTHDAY. Tamkang Journal of Mathematics, [S. l.], v. 21, n. 2, p. 123–130, 1990. DOI: 10.5556/j.tkjm.21.1990.4646. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4646. Acesso em: 1 may. 2024.