Rangaswamy, K. M. “Characterisation Oe Intersections of Neat Subgroups of Abelian Groups”. The Journal of the Indian Mathematical Society 29, no. 1-2 (June 1, 1965): 31–36. Accessed May 4, 2024. https://informaticsjournals.com/index.php/jims/article/view/16820.