@InProceedings{McCPerRei2005,
  author =               {Jonathan M. McCune and Adrian Perrig and Michael K. Reiter},
  title =                {Seeing-Is-Believing: Using Camera Phones for
                  Human-Verifiable Authentication},
  booktitle =    {Proceedings of IEEE Symposium on Security and Privacy},
  year =                 2005,
  month =                may
}