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"Constructing Secure Audio CAPTCHAs by Exploiting Differences between ..."
Hendrik Meutzner, Santosh Gupta, Dorothea Kolossa (2015)
- Hendrik Meutzner, Santosh Gupta, Dorothea Kolossa
:
Constructing Secure Audio CAPTCHAs by Exploiting Differences between Humans and Machines. CHI 2015: 2335-2338

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