@inproceedings{GJM99,
 author    = {Juan A. Garay and Markus Jakobsson and Philip D. MacKenzie},
 title     = {Abuse-Free Optimistic Contract Signing},
 booktitle = {CRYPTO '99: Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology},
 year      = {1999},
 isbn      = {3-540-66347-9},
 pages     = {449--466},
 note      = {LNCS 1666}
 publisher = {Springer-Verlag},
 address   = {London, UK},
 }