• CAPTCHA Design: Color, Usabili...

Treffer: CAPTCHA Design: Color, Usability, and Security.

Title:
CAPTCHA Design: Color, Usability, and Security.
Authors:
Ahmad Salah El Ahmad, Jeff Yan, Wai-Yin Ng
Source:
IEEE Internet Comput.. 16(2):44-51
Availability:
https://dblp.org/rec/journals/internet/AhmadYN12
Database:
dblp computer science bibliography