@ARTICLE {
        BLNSis13,
	AUTHOR = "N. Brisaboa and M. Luaces and G. Navarro and D. Seco",
	TITLE = "Space-Efficient Representations of Rectangle Datasets Supporting Orthogonal Range Querying",
        JOURNAL = {Information Systems},
        YEAR = 2013,
	VOLUME = 35,
	NUMBER = 5,
	PAGES = "635--655"
        }