@ARTICLE {
        HNalgor04,
        TITLE = "Bit-parallel Witnesses and their Applications
	         to Approximate String Matching",
        AUTHOR = "H. Hyyr{\"o} and G. Navarro",
        JOURNAL = "Algorithmica",
        PUBLISHER = "Springer",
	VOLUME = 41,
	NUMBER = 3,
	PAGES = "203--231",
	YEAR = 2005
        }