Citation
If you publish research that uses pm4py you have to cite it as follows:
Berti, A., van Zelst, S. J., & van der Aalst, W. M. P. (2019). Process Mining for Python (PM4Py): Bridging the Gap Between Process- and Data Science. Proceedings of the ICPM Demo Track 2019, 1st International Conference on Process Mining (ICPM 2019), 13-16. https://doi.org/10.5281/zenodo.3632867