Update README.md

README.md

@@ -159,6 +159,14 @@ Please cite the works below if you use this dataset in your work.
   pages     = {582--592},
   url       = {http://aclweb.org/anthology/P17-1054}
 }
+
+@article{mahata2022ldkp,
+  title={LDKP: A Dataset for Identifying Keyphrases from Long Scientific Documents},
+  author={Mahata, Debanjan and Agarwal, Navneet and Gautam, Dibya and Kumar, Amardeep and Parekh, Swapnil and Singla, Yaman Kumar and Acharya, Anish and Shah, Rajiv Ratn},
+  journal={arXiv preprint arXiv:2203.15349},
+  year={2022}
+}
+
 ```