@InCollection{locprove-cryptobytes04,
  author =       {Naveen Sastry and Umesh Shankar and David Wagner},
  title =        {Secure Verification of Location Claims},
  booktitle =    {CryptoBytes},
  pages =        {17--29},
  publisher =    {RSA Labs},
  year =         2004,
  volume =       7,
  number =       1,
  month =        {Spring},
}