A Proposal for Formalizing and Extending the Generalization and Subset Abstractions in the Enity-Relationship (1989)

by L Tucherman, M A Casanova, P M Gualandi, A P Braga
Venue:Lochovsky (Ed.): Entity-Relationship Approach to Database Design and Querying, Proceedings of the Eight International Conference on Entity-Relationship Approach