@INPROCEEDINGS{Sha_06,
  AUTHOR = {I. Sharfman and Assaf Schuster and Daniel Keren},
  TITLE = {A Geometric Appraoch to Monitoring Threshold Functions Over Distributed Data Streams},
  BOOKTITLE = {Proceedings of the SIGMOD 2006},
  ADDRESS = {Chicago, Illinois},
  PAGES = {},
  MONTH = {June},
  URL       = {http://portal.acm.org/citation.cfm?id=1142508&dl=ACM&coll=ACM&CFID=15151515&CFTOKEN=6184618},
  YEAR = {2006}
}