Zhu, Yutao, et al. “One Token Can Help! Learning Scalable and Pluggable Virtual Tokens for Retrieval-Augmented Large Language Models”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 39, no. 24, Apr. 2025, pp. 26166-74, doi:10.1609/aaai.v39i24.34813.