If you use mathlib in your work, please cite:
The mathlib Community. The Lean Mathematical Library. CPP 2020. https://doi.org/10.1145/3372885.3373824
@inproceedings{mathlib2020,
author = {{The mathlib Community}},
title = {The {L}ean {M}athematical {L}ibrary},
booktitle = {Proceedings of the 9th {ACM} {SIGPLAN} International Conference
on Certified Programs and Proofs},
series = {CPP 2020},
publisher = {ACM},
address = {New Orleans, LA, USA},
year = {2020},
month = jan,
doi = {10.1145/3372885.3373824},
url = {https://doi.org/10.1145/3372885.3373824}
}