A Model for Attribute-Based User-Role Assignment. - Mohammad A. Al-Kahtani; Ravi S. Sandhu (ACSAC, 2002)

Induced role hierarchies with attribute-based RBAC. - Mohammad A. Al-Kahtani; Ravi S. Sandhu (SACMAT, 2003)

Mohammad A. Al-Kahtani, Ravi Sandhu. - Mohammad A. Al-Kahtani; Ravi S. Sandhu (ACSAC, 2004)