1. Development of integrated programs for aerospace-vehicle design (IPAD) — IPAD user requirements;Anderton;NASA Contractor Report CR-2985,1979
2. Concepts in CAD Database Structures;Ciampi,1976
3. Managing geometric information with a database management system;Dube,1983
4. System facilities for CAD databases;Eastman,1980
5. Database facilities for engineering design;Eastman,1981