Update README.md

README.md

@@ -28,4 +28,10 @@ To reflect verification effort, each sample is tagged with a retrieval difficult
 | **Advanced** | >10 sources |
 
 ## Citation
-If you find this dataset useful, please cite: [https://arxiv.org/abs/2510.25120](https://arxiv.org/abs/2510.25120)
+If you find this dataset useful, please cite:
+@article{xu2025mmm,
+  title={MMM-Fact: A Multimodal, Multi-Domain Fact-Checking Dataset with Multi-Level Retrieval Difficulty},
+  author={Xu, Wenyan and Xiang, Dawei and Ding, Tianqi and Lu, Weihai},
+  journal={arXiv preprint arXiv:2510.25120},
+  year={2025}
+}