1. Bhatti, R., Joshi, J.B., Bertino, E., Ghafoor, A.: Access Control in Dynamic XML-based Web-Services with X-RBAC. In: First International Conference on Web Services, Las Vegas (June 2003)
2. Fink, T., Koch, M., Oancea, C.: Specification and Enforcement of Access Control in Heterogeneous Distributed Applications. In: International Conference on Web Services (ICWS), Germany (September 2003)
3. Ungureanu, V., Misnky, N.H.: Unified Support for Heterogeneous Security Polices in Distributed Systems. In: 7
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USENIX Security Symposium, Texas (January 1998)
4. OASIS extensible Access Control Markup language (XACML),
http://www.oasis-open.org/committees
5. J2SE 5.0 in a nutshell,
http://java.sun.com/developer/technicalArticles/releases/j2se15