CAPTCHA Design Color, Usability, and Security

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  2. Ahmad El Ahmad
  3. Dr Jeff Yan
Author(s)El Ahmad A, Yan J, Ng WY
Publication type Article
JournalIEEE Internet Computing
Year2012
Volume16
Issue2
Pages44-51
ISSN (print)1089-7801
ISSN (electronic)1941-0131
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PublisherIEEE
URLhttp://dx.doi.org/10.1109/MIC.2011.102
DOI10.1109/MIC.2011.102
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