@INPROCEEDINGS{
        NPCspire02.3,
        AUTHOR = "G. Navarro and R. Paredes and E. Ch\'avez",
        TITLE = "$t$-Spanners as a Data Structure for Metric Space Searching",
        BOOKTITLE = {Proc. 9th International Symposium on String Processing and Information Retrieval (SPIRE)},
        YEAR = "2002",
	SERIES = "LNCS 2476",
        PUBLISHER = "Springer",
	PAGES = "298--309"
    }