A Kernel Design for a Secure Data Base Management System. - Deborah Downs; Gerald J. Popek (IEEE Database Eng. Bull., 1977)

Data Base Management Systems Security and INGRES. - Deborah Downs; Gerald J. Popek (VLDB, 1979)

Issues in Discretionary Access Control. - Deborah Downs; Jerzy R. Rub; Kenneth C. Kung; Carole S. Jordan (S&P, 1985)