@TechReport{Using_OWL_to_Model_Role_Based_Access_Control, author = "Tim Finin, Anupam Joshi, Lalana Kagal, Jianwei Niu, Ravi Sandhu, William H Winsborough, and Bhavani Thuraisingham", title = "{Using OWL to Model Role Based Access Control}", month = "February", year = "2008", organization = "Ebiquity Laboratory", institution = "University of Maryland, Baltimore County", }