A Proposal for Formalizing and Extending the Generalization and Subset Abstractions in the Entity-Relationship Model

TUCHERMAN, L. ; CASANOVA, M. A. ; GUALANDI, P.M. ; BRAGA, A.P. . A Proposal for Formalizing and Extending the Generalization and Subset Abstractions in the Entity-Relationship Model. In: 8th International Conference on Entity-Relationship Approach (ER), 1989, Toronto, Canada. Proceedings of the Eight International Conference on Enity-Relationship Approach. Amsterdam: North-Holland, 1989. p. 27-41.

1989