@inproceedings{DBLP:conf/hip/Lopresti05,
author = {Daniel P. Lopresti},
title = {Leveraging the CAPTCHA Problem},
booktitle = {HIP},
year = {2005},
pages = {97-110},
ee = {http://dx.doi.org/10.1007/11427896_7},
crossref = {DBLP:conf/hip/2005},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
@proceedings{DBLP:conf/hip/2005,
editor = {Henry S. Baird and
Daniel P. Lopresti},
title = {Human Interactive Proofs, Second International Workshop,
HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings},
booktitle = {HIP},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
volume = {3517},
year = {2005},
isbn = {3-540-26001-3},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
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