| Title | Synthesising verified access control systems in XACML | 
| Publication Type | Conference Proceedings | 
| Year of Publication | 2004 | 
| Authors | Zhang, N., M. Ryan, and D. P. Guelev | 
| Conference Name | 2004 ACM Workshop on Formal methods in security engineering | 
| Pagination | 56-65 | 
| Publisher | ACM Press | 
| ISBN Number | 1-58113-971-3 |