@Article{	  DiekertWalter17,
  author	= "Volker Diekert and Tobias Walter",
  title		= "Characterizing classes of regular languages using prefix
		  codes of bounded synchronization delay",
  journal	= "International Journal of Algebra and Computation",
  volume	= "27",
  pages		= "561--590",
  year		= "2017",
  url		= "https://doi.org/10.1142/S021819671750028X",
  doi		= "10.1142/S021819671750028X",
  timestamp	= "Fri, 03 Nov 2017 17:02:31 +0100",
  biburl	= "http://dblp.org/rec/bib/journals/ijac/DiekertW17",
  bibsource	= "dblp computer science bibliography, http://dblp.org"
}