1. CASCADE — A Computer-Based Documentation System;Aadstadt,1972
2. Computer Aided Database Design,1985
3. System R: A Relational Approach to Database Management;Astrahan;ACM Trans. on Database Systems (TODS),1976
4. INCOD: A System for Conceptual Design of Data and Transactions in the Entity-Relationship Model;Atzeni,1981
5. Auxtron Computer Enterprises, Inc. 2. Auxco Project Management System: User Reference Manual, 1972.