1. Using machine learning to identify common flaws in CAPTCHA design: FunCAPTCHA case analysis. Issue 70 (September 2017) Authors: Hernández-Castro, Carlos Javier; R-Moreno, María D.; Barrero, David F.; Gibson, Stuart Journal: Computers & security Issue: Issue 70(2017) Page Start: 744 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗