@INPROCEEDINGS(trappAg,
 TITLE="Offering a Precision-Performance Tradeoff for Aggregation Queries over Replicated Data",
 AUTHOR={C. Olston and J. Widom},
 BOOKTITLE="Proceedings of the Twenty-Sixth International Conference on Very Large Data Bases",
 YEAR=2000,
 MONTH=sep,
 ADDRESS={Cairo, Egypt},
 PAGES={144-155})