Naveen Kumar Siripuram, Manish Tomar, and Amsa Selvaraj, “Multi-Hop Reasoning Enhancement in Retrieval-Augmented Generation using Hierarchical Graph Neural Networks”, American J Data Sci Artif Intell Innov, vol. 1, pp. 350–383, Apr. 2021, Accessed: Mar. 07, 2026. [Online]. Available: https://ajdsai.org/index.php/publication/article/view/48