@ARTICLE {
	AUTHOR = "Karina Figueroa and Edgar Ch{\'a}vez and Gonzalo Navarro and Rodrigo Paredes",
	TITLE ="Speeding up Spatial Approximation Search in Metric Spaces",
	JOURNAL = "ACM Journal of Experimental Algorithmics (JEA)",
	VOLUME = "14",
	PAGES = "article 3.6",
	MONTH = "Aug",
	YEAR = "2009",
	PUBLISHER = "ACM Press",
	ADDRESS = "New York, NY, USA",
	ISSN ="1084-6654",
	NOTE = "21 pages",
	}