Update README.md

README.md

@@ -451,4 +451,15 @@ Each language file inherits the more restrictive license between its UniMorph so
 - `README.md` is the dataset card.
 - `.gitattributes` marks `*.tsv` for Git LFS.
 - `.gitignore` is provided for common local artifacts.
-- `*.tsv` files are per-language datasets at the repository root.
+- `*.tsv` files are per-language datasets at the repository root.
+
+## References
+
+Batsuren et al. (2022). *UniMorph 4.0: Universal Morphology*. Proceedings of the Thirteenth Language Resources and Evaluation Conference (LREC 2022), Marseille, France. European Language Resources Association. Pages 840–855.  
+https://aclanthology.org/2022.lrec-1.89/
+
+Žabokrtský et al. (2022). *Towards Universal Segmentations: UniSegments 1.0*. Proceedings of the Thirteenth Language Resources and Evaluation Conference (LREC 2022), Marseille, France. European Language Resources Association. Pages 1137–1149.  
+https://aclanthology.org/2022.lrec-1.122/
+
+Stephen, A., & Libovický, J. (2026). *Evaluating Morphological Plausibility of Subword Tokenization via Statistical Alignment with Morpho-Syntactic Features*. arXiv preprint arXiv:2601.18536.  
+https://arxiv.org/abs/2601.18536