@ARTICLE 
        { FGGMNOtcs21,
          TITLE = "Efficient and Compact Representations of Some Non-Canonical 
		   Prefix-Free Codes",
          AUTHOR = "A. Fari{\~n}a and T. Gagie and Sz. Grabowski and G. Manzini
		    and G. Navarro and A. Ord{\'o\~n}ez",
	  JOURNAL = "Theoretical Computer Science",
	  VOLUME = 907,
	  PAGES = "11--25",
	  YEAR = 2022,
        }