@inproceedings{VLDB-1997-GoldmanW,
	author        = "Roy Goldman and Jennifer Widom",
	booktitle     = "{Proceedings of the 23rd International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1997/P436.PDF",
	isbn          = "1-55860-470-7",
	pages         = "436--445",
	publisher     = "{Morgan Kaufmann}",
	title         = "{DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases}",
	year          = 1997,
}