Update README.md

README.md

@@ -5,4 +5,29 @@ task_categories:
 ---
 
 A collection of raw images from DIV2K, Flicker2K and OST datasets.
-Please refer [here](https://github.com/XPixelGroup/BasicSR/blob/master/docs/DatasetPreparation.md) for details.
+Please refer [here](https://github.com/XPixelGroup/BasicSR/blob/master/docs/DatasetPreparation.md) for details.
+
+## Citation 
+
+```bibtex
+@inproceedings{agustsson2017ntire,
+  title={Ntire 2017 challenge on single image super-resolution: Dataset and study},
+  author={Agustsson, Eirikur and Timofte, Radu},
+  booktitle={CVPRW},
+  year={2017}
+}
+
+@InProceedings{Lim_2017_CVPR_Workshops,
+  author = {Lim, Bee and Son, Sanghyun and Kim, Heewon and Nah, Seungjun and Lee, Kyoung Mu},
+  title = {Enhanced Deep Residual Networks for Single Image Super-Resolution},
+  booktitle = {CVPRW},
+  year = {2017}
+}
+
+@inproceedings{wang2018recovering,
+  title={Recovering realistic texture in image super-resolution by deep spatial feature transform},
+  author={Wang, Xintao and Yu, Ke and Dong, Chao and Loy, Chen Change},
+  booktitle={CVPR},
+  year={2018}
+}
+```