@INPROCEEDINGS{
        Navspire99,
        AUTHOR = "G. Navarro",
        TITLE = "Searching in Metric Spaces by Spatial Approximation",
        BOOKTITLE = {Proc. 6th International Symposium on String Processing and Information Retrieval (SPIRE)},
        YEAR = "1999",
	PAGES = "141--148",
        PUBLISHER = "IEEE CS Press",
    }