1. http://www.ckfraud.org/ckfraud.html
2. https://www.acfe.com/rttn2016/about/executive-summary.aspx
3. https://sqnbankingsystems.com/solutions/check-image-analysis/
4. https://www.smartsearch.com/us/solutions/aml-monitoring-and-alerts
5. https://www.kofax.com/Products/fraudone/overview