Update README.md

README.md

@@ -39,5 +39,13 @@ For more details, see our [project page](https://thu-nics.github.io/WideSeek-R1/
 If you use this model in your research, please cite our paper:
 
 ```bibtex
-To Be Done
+@misc{xu2026wideseekr1exploringwidthscaling,
+      title={WideSeek-R1: Exploring Width Scaling for Broad Information Seeking via Multi-Agent Reinforcement Learning}, 
+      author={Zelai Xu and Zhexuan Xu and Ruize Zhang and Chunyang Zhu and Shi Yu and Weilin Liu and Quanlu Zhang and Wenbo Ding and Chao Yu and Yu Wang},
+      year={2026},
+      eprint={2602.04634},
+      archivePrefix={arXiv},
+      primaryClass={cs.AI},
+      url={https://arxiv.org/abs/2602.04634}, 
+}
 ```