@INPROCEEDINGS{Cong_07,
author={G. Cong and W. Fan and A. Kementsietsidis},
title="{Distributed Query Evaluation with Performance Guarantees}",
booktitle={Proceedings of the 2007 ACM SIGMOD International Conference on Management of Data},
year={2007},
pages={509-520},
address={New York, NY},
url={http://portal.acm.org/citation.cfm?doid=1247480.1247537},
}