×
+ All Categories
Log in
English
Français
Español
Deutsch
The top documents tagged [background captchas]
Home >
background captchas
563.10.3 captcha
1.671 views
563.10.3 CAPTCHA Presented by: Sari Louis SPAM Group: Marc Gagnon, Sari Louis, Steve White University of Illinois Spring 2006.
220 views