MAJEED, A.; MIKUSIŃSKI, P. Derivations on Pseudoquotients. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 6, p. 863–869, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2472. Acesso em: 14 apr. 2025.