Update README.md

README.md

@@ -241,4 +241,14 @@ gold_test = canonical["test"]
 
 ## Citation
 
-TODO
+```bibtex
+@misc{Recski:2026,
+      title={ACL-Verbatim: hallucination-free question answering for research}, 
+      author={Gábor Recski and Szilveszter Tóth and Nadia Verdha and István Boros and Ádám Kovács},
+      year={2026},
+      eprint={2605.21102},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2605.21102}, 
+}
+```