Alizade, R., and S. Güngör. “Co-Coatomically Supplemented Modules”. Ukrains’kyi Matematychnyi Zhurnal 69, no. 7 (July 25, 2017): 867-876. Accessed March 29, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1742.