Update README.md

README.md

@@ -11,12 +11,24 @@ in a conventional office environment (rather than a darkroom). The collection fo
 4) The volunteers participated in MMCBNU_6000 are from 20 countries. These countries cover Asian, Europe, Africa, and America.
 
 # Citation
-If you apply this dataset to any project and research, please cite our repo:
+If you apply this dataset to any project and research, please cite our papers:
 ```
 @article{MMCBNU_6000,
   title         = {An Available Database for the Research of Finger Vein Recognition},
   author        = {Yu Lu, Shanjuan Xie, Sook Yoon, Zhihui Wang, Dong Sun Park},
-  conference    = {https://ieeexplore.ieee.org/document/6744030},
+  booktitle     = {2013 6th International Congress on Image and Signal Processing (CISP)}, 
+  doi           = {10.1109/CISP.2013.6744030}}
   year          = {2014},
 }
 ```
+
+```
+@article{Lu2013RobustFV,
+  title={Robust Finger Vein ROI Localization Based on Flexible Segmentation},
+  author={Yu Lu and Shan Juan Xie and Sook Yoon and Ju Cheng Yang and Dong Sun Park},
+  journal={Sensors (Basel, Switzerland)},
+  year={2013},
+  volume={13},
+  pages={14339 - 14366}
+}
+```