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"Graphical Query Formulation for an Entity-Relationship Model."
Douglas M. Campbell, David W. Embley, Bogdan D. Czejdo (1987)
- Douglas M. Campbell, David W. Embley, Bogdan D. Czejdo:
Graphical Query Formulation for an Entity-Relationship Model. Data Knowl. Eng. 2: 89-121 (1987)
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