%0 Conference Paper
%1 Ahn03captcha:using
%A von Ahn, Luis
%A Blum, Manuel
%A Hopper, Nicholas J.
%A Langford, John
%B EUROCRYPT
%D 2003
%I Springer-Verlag
%K captcha identity
%P 294--311
%T CAPTCHA: Using Hard AI Problems for Security
%V 2656
@inproceedings{Ahn03captcha:using,
added-at = {2012-01-13T15:36:01.000+0100},
author = {von Ahn, Luis and Blum, Manuel and Hopper, Nicholas J. and Langford, John},
biburl = {https://www.bibsonomy.org/bibtex/22c20d78a90c65692aca9077cedb102da/deynard},
booktitle = {EUROCRYPT},
interhash = {f79f32aee2d9368890442dc2d4e56297},
intrahash = {2c20d78a90c65692aca9077cedb102da},
keywords = {captcha identity},
pages = {294--311},
publisher = {Springer-Verlag},
series = {Lecture Notes in Computer Science},
timestamp = {2012-01-13T15:36:01.000+0100},
title = {CAPTCHA: Using Hard AI Problems for Security },
volume = 2656,
year = 2003
}