YEN, C.-T. RINGS WITH A DERIVATION WHOSE IMAGE IS ZERO ON THE ASSOCIATORS. Tamkang Journal of Mathematics, [S. l.], v. 26, n. 1, p. 5–8, 1995. DOI: 10.5556/j.tkjm.26.1995.4371. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4371. Acesso em: 1 may. 2024.