Update README.md

README.md

@@ -104,10 +104,13 @@ python eval_ia_bench.py --predictions preds.jsonl --gt-repo irl-kit/IA-bench
 If you use IA-bench, please cite:
 
 ```bibtex
-@inproceedings{TODO_ia_bench,
-  title     = {TODO: paper title},
-  author    = {TODO: authors},
-  booktitle = {TODO: venue},
-  year      = {TODO},
+@misc{blank2026sparcreliablespatialannotations,
+      title={SPARC: Reliable Spatial Annotations from Robot Demonstrations at Scale}, 
+      author={Nils Blank and Paul Mattes and Maximilian Xiling Li and Jakub Suliga and Thomas Roth and Moritz Reuss and Pankhuri Vanjani and Rudolf Lioutikov},
+      year={2026},
+      eprint={2606.13497},
+      archivePrefix={arXiv},
+      primaryClass={cs.RO},
+      url={https://arxiv.org/abs/2606.13497}, 
 }
 ```