Update README.md

README.md

@@ -235,5 +235,10 @@ This project is released under the MIT License.
 If you find this project useful in your research, please consider citing:
 
 ```BibTeX
-
+@inproceedings{guan2025TokenOCR,
+  title={A Token-level Text Image Foundation Model for Document Understanding},
+  author={Tongkun Guan, Zining Wang, Pei Fu, Zhentao Guo, Wei Shen, Kai zhou, Tiezhu Yue, Chen Duan, Hao Sun, Qianyi Jiang, Junfeng Luo, Xiaokang Yang},
+  booktitle={Arxiv},
+  year={2025}
+}
 ```