VUKMAN, J.; KOSI-ULBL, I. On Two-Sided Centralizers of Rings and Algebras. CUBO, A Mathematical Journal, [S. l.], v. 10, n. 3, p. 211–222, 2008. Disponível em: https://cubo.ufro.cl/ojs/index.php/cubo/article/view/1511. Acesso em: 4 may. 2024.