%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 }