Captcha Robustness: A Security Engineering Perspective

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  2. Dr Jeff Yan
  3. Ahmad El Ahmad
Author(s)Yan J, El Ahmad AS
Publication type Article
JournalComputer
Year2011
Volume44
Issue2
Pages54-60
ISSN (print)0018-9162
ISSN (electronic)1558-0814
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PublisherIEEE
URLhttp://dx.doi.org/10.1109/MC.2010.275
DOI10.1109/MC.2010.275
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