Update README.md

README.md

@@ -57,6 +57,13 @@ Notably, the dataset poses several challenges: 254 questions necessitate cross-m
 ## Citation
 If you use any datasets from this organization in your research, please cite the original dataset as follows:
 ```
-@misc{, 
+@misc{dong2025mmdocirbenchmarkingmultimodalretrieval,
+      title={MMDocIR: Benchmarking Multi-Modal Retrieval for Long Documents}, 
+      author={Kuicai Dong and Yujing Chang and Xin Deik Goh and Dexun Li and Ruiming Tang and Yong Liu},
+      year={2025},
+      eprint={2501.08828},
+      archivePrefix={arXiv},
+      primaryClass={cs.IR},
+      url={https://arxiv.org/abs/2501.08828}, 
 }
 ```