@inproceedings{nagaraj_naidu_rastogi_satkin_2008, 
  title={Efficient Aggregate Computation over Data Streams}, 
  DOI={10.1109/icde.2008.4497563}, 
  publisher={IEEE}, 
  author={Nagaraj and Naidu and Rastogi and Satkin}, 
  year={2008}
  }