@InProceedings{Role_Based_Access_Control_and_OWL,
  author = "Tim  Finin and Anupam  Joshi and Lalana  Kagal and Jianwei  Niu and Ravi  Sandhu and William H Winsborough and Bhavani  Thuraisingham",
  title = "{Role Based Access Control and OWL}",
  month = "April",
  year = "2008",
  booktitle = "Proceedings of the fourth OWL: Experiences and Directions Workshop",
}