An approach to the user interface and semantic integrity for a relational DBMS

Extending the database relational model to capture more meaning

ACM Transactions on Database Systems (TODS)

Relational Database Systemsr

ACM Computing Surveys (CSUR)

Guide to Nomad for Applications Development

Guide to Nomad for Applications Development

Data models in database management

Proceedings of the 1980 workshop on Data abstraction, databases and conceptual modeling

Evolutionary development

ACM SIGSOFT Software Engineering Notes