Add citation and licensing

README.md

@@ -81,3 +81,30 @@ The following hyperparameters were used during training:
 - Pytorch 2.0.1+cu117
 - Datasets 2.14.4
 - Tokenizers 0.13.3
+
+## Citation
+
+If you use these models in your research, please cite:
+
+```bibtex
+@misc{dezuazo2025whisperlmimprovingasrmodels,
+      title={Whisper-LM: Improving ASR Models with Language Models for Low-Resource Languages}, 
+      author={Xabier de Zuazo and Eva Navas and Ibon Saratxaga and Inma Hernáez Rioja},
+      year={2025},
+      eprint={2503.23542},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2503.23542}, 
+}
+```
+
+Please, check the related paper preprint in
+[arXiv:2503.23542](https://arxiv.org/abs/2503.23542)
+for more details.
+
+## Licensing
+
+This model is available under the
+[Apache-2.0 License](https://www.apache.org/licenses/LICENSE-2.0).
+You are free to use, modify, and distribute this model as long as you credit
+the original creators.