@inproceedings{SIGMOD-1993-HellersteinS,
	author        = "Joseph M. Hellerstein and Michael Stonebraker",
	booktitle     = "{Proceedings of the 23rd ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD93/P267.PDF",
	doi           = "10.1145/170035.170078",
	pages         = "267--276",
	publisher     = "{ACM Press}",
	title         = "{Predicate Migration: Optimizing Queries with Expensive Predicates}",
	year          = 1993,
}