@ARTICLE
        { BYGNSjlcsf,
          TITLE = "Bounding the Expected Length of Longest Common Subsequences and Forests",
          AUTHOR = "R. Baeza-Yates and R. Gavald{\'a} and G. Navarro and R. Scheihing",
	  VOLUME = 32,
	  JOURNAL = "Theory of Computing Systems",
	  NUMBER = 4,
	  PAGES = "435--452",
	  YEAR = 1999,
	}