@conference{Ang04,
  title = "A Pay-per-Use DoS Protection Mechanism For The Web",
  author = "Angelos Stavrou, John Ioannidis, Angelos Keromytis, Vishal Misra, Dan Rubenstein",
  year = "2004",
  month = "jun",
  booktitle = "In Proceedings of the 2nd Applied Cryptography and Network Security (ACNS) Conference",
  address = "Yellow Mountain, China",
}