@InProceedings{	  DiekertWalter16,
  author	= "Volker Diekert and Tobias Walter",
  title		= "Characterizing classes of regular languages using prefix
		  codes of bounded synchronization delay",
  booktitle	= "43rd International Colloquium on Automata, Languages, and
		  Programming (ICALP 2016)",
  series	= "Leibniz International Proceedings in Informatics (LIPIcs)",
  volume	= "",
  editor	= "Ioannis Chatzigiannakis and Michael Mitzenmacher and Yuval
		  Rabani and Davide Sangiorgi",
  year		= "2016",
  pages		= "129:1--129:13",
  doi		= "10.4230/LIPIcs.ICALP.2016.129"
}