Foundation for a Time Interval Access Control Model. - Francis B. Afinidad; Timothy E. Levin; Cynthia E. Irvine; Thuy D. Nguyen (MMM-ACNS, 2005)

A Model for Temporal Interval Authorizations. - Francis B. Afinidad; Timothy E. Levin; Cynthia E. Irvine; Thuy D. Nguyen (HICSS, 2006)