@INPROCEEDINGS{
        BYNVFspire98,
        AUTHOR = "R. Baeza-Yates and G. Navarro and J. Vegas and P. de la Fuente",
        TITLE = "A Model and a Visual Query Language for Structured Text",
        BOOKTITLE = {Proc. 5th International Symposium on String Processing and Information Retrieval (SPIRE)},
        YEAR = "1998",
	PUBLISHER = "IEEE CS Press",
	PAGES = "7--13",
    }