@ARTICLE 
        { BYNjasis01,
          TITLE = "XQL and Proximal Nodes",
          AUTHOR = "R. Baeza-Yates and G. Navarro",
          JOURNAL = "J. of the American Society for Information Systems and Technology (JASIST)",
	  VOLUME = 53,
  	  NUMBER = 6,
	  PAGES = "504--514",
          YEAR = 2002,
	  NOTE = "Special issue on XML and Information Retrieval."
        }