Update README.md

README.md

@@ -98,5 +98,10 @@ snapshot_download("nyu-visionx/pisa-experiments", local_dir=dataset_path, repo_t
 ## Citation
 
 ``` bibtex
-
+@article{li2025pisa,
+    title={Pisa Experiments: Exploring Physics Post-Training for Video Diffusion Models by Watching Stuff Drop},
+    author={Li, Chenyu and Michel, Oscar and Pan, Xichen and Liu, Sainan and Roberts, Mike and Xie, Saining},
+    journal={arXiv preprint arXiv:2503.09595},
+    year={2025},
+}
 ```