Update app.py

app.py

@@ -236,7 +236,12 @@ article = r"""
 <br>
 If our work is helpful for your research or applications, please cite us via:
 ```bibtex
-TBD
+@article{tao2025instantcharacter,
+  title={InstantCharacter: Personalize Any Characters with a Scalable Diffusion Transformer Framework},
+  author={Tao, Jiale and Zhang, Yanbing and Wang, Qixun and Cheng, Yiji and Wang, Haofan and Bai, Xu and Zhou, Zhengguang and Li, Ruihuang and Wang, Linqing and Wang, Chunyu and others},
+  journal={arXiv preprint arXiv:2504.12395},
+  year={2025}
+}
 ```
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