@ARTICLE {
        CFNtpami08,
	TITLE = "Effective Proximity Retrieval by Ordering Permutations",
        AUTHOR = "E. Ch{\'a}vez and K. Figueroa and G. Navarro",
	JOURNAL = "IEEE Transactions on Pattern Analysis and Machine 
		   Intelligence (TPAMI)",
	VOLUME = 30,
	NUMBER = 9,
	PAGES = "1647--1658", 
	YEAR = 2008
        }