@ARTICLE {
        NPalgor09,
	TITLE = "On Sorting, Heaps, and Minimum Spanning Trees",
        AUTHOR = "G. Navarro and R. Paredes",
        JOURNAL = "Algorithmica",
        PUBLISHER = "Springer",
	YEAR = 2010,
	VOLUME = 57,
	NUMBER = 4,
	PAGES = "585--620"
        }