@article{1504,
  author = {Albert Wasef and Xuemin Shen},
  title = {EDR: Efficient decentralized revocation protocol for vehicular ad hoc networks},
  year = {2009},
  journal = {IEEE Transactions on Vehicular Technology},
  volume = {58},
  number = {9},
  pages = {5214-5224},
  publisher = {IEEE},
}