Update README.md

README.md

@@ -180,7 +180,17 @@ The Barcelona Supercomputing Center, as the owner and creator of the model, shal
 
 ### Citation
 
-A detailed technical report will be released soon.
+```
+@misc{tamayo2026mrbertmodernmultilingualencoders,
+      title={MrBERT: Modern Multilingual Encoders via Vocabulary, Domain, and Dimensional Adaptation}, 
+      author={Daniel Tamayo and Iñaki Lacunza and Paula Rivera-Hidalgo and Severino Da Dalt and Javier Aula-Blasco and Aitor Gonzalez-Agirre and Marta Villegas},
+      year={2026},
+      eprint={2602.21379},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2602.21379}, 
+}
+```
 
 ### License
 [Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0)