Citation
If you publish research that uses casoffinder you have to cite it as follows:
Bae, S., Park, J., & Kim, J.-S. (2014). Cas-OFFinder: A fast and versatile algorithm that searches for potential off-target sites of Cas9 RNA-guided endonucleases. Bioinformatics, 30(10), 1473–1475. https://doi.org/10.1093/bioinformatics/btu048