KARA, Y. On Weak Projection Invariant Extending Modules. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 75, n. 6, p. 785–794, 2022. DOI: 10.7546/CRABS.2022.06.01. Disponível em: http://www.proceedings.bas.bg/index.php/cr/article/view/92. Acesso em: 2 feb. 2023.