Update README.md

README.md

@@ -264,4 +264,14 @@ This is an early prototype version. Accordingly, it has limitations *in addition
 
 ## Citation
 
-TBA
+```
+@misc{dorkin2026estllmenhancingestoniancapabilities,
+      title={{EstLLM: Enhancing Estonian Capabilities in Multilingual LLMs via Continued Pretraining and Post-Training}}, 
+      author={Aleksei Dorkin and Taido Purason and Emil Kalbaliyev and Hele-Andra Kuulmets and Marii Ojastu and Mark Fišel and Tanel Alumäe and Eleri Aedmaa and Krister Kruusmaa and Kairit Sirts},
+      year={2026},
+      eprint={2603.02041},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2603.02041}, 
+}
+```