Srikanta J. Bedathur Abhijit Kadlag Jayant R. Haritsa 2004 conf/sigmod/2004 SIGMOD Conference http://doi.acm.org/10.1145/1007568.1007717 http://www.sigmod.org/sigmod/sigmod04/eproceedings/pdf/D-132.pdf db/conf/sigmod/sigmod2004.html#BedathurKH04 953-954