Cotorsion Dimension of Weak Crossed Products. Communications in Mathematical Research, [S. l.], v. 34, n. 2, p. 133–140, 2019. DOI: 10.13447/j.1674-5647.2018.02.05. Disponível em: https://global-sci.com/index.php/cmr/article/view/8958. Acesso em: 5 dec. 2025.