KALATI, Amouzegar T. A Generalization of Lifting Modules. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 11, p. 1477–1484, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2239. Acesso em: 6 dec. 2025.