@INBOOK {
	CN04encic,
	TITLE = "Metric Databases",
	BOOKTITLE = "Encyclopedia of Database Technologies and Applications",
	AUTHOR = "E. Ch\'avez and G. Navarro",
	EDITOR = "L. Rivero and J. Doorn and V. Ferraggine",
	PUBLISHER = "Idea Group Inc., Pennsylvania, USA",
	YEAR = 2005,
	ISBN = "1-59140-560-2",
	PAGES = "367-372"
	}