FATCHA: biometrics lends tools for CAPTCHAs
Crossref DOI link: https://doi.org/10.1007/s11042-016-3518-8
Published Online: 2016-04-15
Published Print: 2017-02
Update policy: https://doi.org/10.1007/springer_crossmark_policy
De Marsico, Maria
Marchionni, Luca
Novelli, Andrea
Oertel, Michael
Text and Data Mining valid from 2016-04-15