@Article{Authorization_and_Privacy_for_Semantic_Web_Services, author = "Lalana Kagal, Massimo Paoucci, Naveen Srinivasan, Grit Denker, 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", }