Update README.md

README.md

@@ -62,6 +62,18 @@ model = Qwen2_5_VLForConditionalGeneration.from_pretrained(
 processor = AutoProcessor.from_pretrained("./model/4drl")
 ```
 
+## Bibtex
+If you find 4DThinker helpful for your work, please cite
+
+```
+@article{chen20264dthinker,
+  title={4DThinker: Thinking with 4D Imagery for Dynamic Spatial Understanding},
+  author={Chen, Zhangquan and Zhang, Manyuan and Yu, Xinlei and An, Xiang and Li, Bo and Xie, Xin and Wang, ZiDong and Sun, Mingze and Chen, Shuang and Li, Hongyu and others},
+  journal={arXiv preprint arXiv:2605.05997},
+  year={2026}
+}
+```
+
 ## License
 
 Apache License 2.0