@InProceedings{esponda06a,
  author =	 {Fernando Esponda, Elena S. Ackley, Paul Helman,
                  Haixia Jia, and Stephanie Forrest.},
  title =	 {Protecting Data Privacy through Hard-to-Reverse
                  Negative Databases},
  booktitle =	 {In proceedings of the 9th Information Security
                  Conference (ISC'06)},
  pages =	 {72-84},
  year =	 {2006},
  editor =	 {Springer LNCS}
}