NAVEEN KUMAR SIRIPURAM; MANISH TOMAR; AMSA SELVARAJ. Multi-Hop Reasoning Enhancement in Retrieval-Augmented Generation using Hierarchical Graph Neural Networks. American Journal of Data Science and Artificial Intelligence Innovations, Newark, USA, v. 1, p. 350–383, 2021. Disponível em: https://ajdsai.org/index.php/publication/article/view/48.. Acesso em: 7 mar. 2026.