Update README.md

README.md

@@ -108,5 +108,10 @@ That is, the output consists of a list of explanations for each error, and a fin
 ## Citation 
 
 ```bibtex
-todo
+@article{treviso2024xtower,
+  title={xTower: A Multilingual LLM for Explaining and Correcting Translation Errors},
+  author={Treviso, Marcos and Guerreiro, Nuno M and Agrawal, Sweta and Rei, Ricardo and Pombal, Jos{\'e} and Vaz, Tania and Wu, Helena and Silva, Beatriz and van Stigt, Daan and Martins, Andr{\'e} FT},
+  journal={arXiv preprint arXiv:2406.19482},
+  year={2024}
+}
 ```