A policy based role framework for access control. - Emil Lupu; Damian A. Marriott; Morris Sloman; Nicholas Yialelis (ACM Workshop on Role-Based Access Control, 1995)

A Security Framework Supporting Domain Based Access Control in Distributed Systems. - Nicholas Yialelis; Morris Sloman (NDSS, 1996)

An authentication service supporting domain-based access control policies. - Nicholas Yialelis; Morris Sloman (SEC, 1996)

Role-based security for distributed object systems. - Nicholas Yialelis; Emil Lupu; Morris Sloman (WETICE, 1996)

Domain-based security for distributed object systems. - Nikolaos Yialelis (1996)