@ARTICLE 
        { BNtalg14,
          AUTHOR = "D. Belazzougui and G. Navarro",
	  TITLE = "Optimal Lower and Upper Bounds for Representing Sequences",
	  JOURNAL = "ACM Transactions on Algorithms",
          YEAR = 2015,
	  VOLUME = 11,
	  NUMBER = 4,
	  PAGES = "article 31"
        }