@Article{_Authorization_and_Privacy_for_Semantic_Web_Services,
  author = "Lalana  Kagal and Massimo  Paoucci and Naveen  Srinivasan and Grit  Denker and Tim  Finin and Katia  Sycara",
  title = "{ Authorization and Privacy for Semantic Web Services}",
  month = "July",
  year = "2004",
  pages = "50-56",
  number = "4",
  volume = "19",
  journal = "IEEE Intelligent Systems (Special Issue on Semantic Web Services)",
  publisher = "IEEE",
}