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README.md

@@ -9,3 +9,10 @@ Source code and data presented in "Causal reasoning over knowledge graphs levera
 
 - `data`: contains the four transcriptomic datasets used in the paper as well as the two KGs. Furthermore, it contains the drug-disease pairs studied in clinical trials which are used as positive pairs for the validation of the RPath algorithm.
 - `notebooks`: contains the code to run the algorithm and its validation as well as its analysis. 
+
+## Citation
+If you have found RPath useful in your work, please consider citing:
+
+Domingo-Fernandez, D., Gadiya, Y., Patel, A., Mubeen, S., Rivas-Barragan, D., Diana, C., B Misra, B., Healey, D., Rokicki, J., Colluru, V. (2021).
+Causal reasoning over knowledge graphs leveraging drug-perturbed and disease-specific transcriptomic signatures for drug discovery. bioRxiv 2021.09.12.459579.
+doi: https://doi.org/10.1101/2021.09.12.459579