Update README.md

README.md

@@ -279,4 +279,8 @@ To get the image, use the following format:
 
 ```
 https://nllb-data.com/{id}.jpg
-```
+```
+
+## Paper
+
+The dataset was used to train the models in the paper: "[NLLB-CLIP - train performant multilingual image retrieval model on a budget](https://arxiv.org/abs/2309.01859)".