@InProceedings{neary:LIPIcs.STACS.2015.649,
  author =	{Neary, Turlough},
  title =	{{Undecidability in Binary Tag Systems and the Post Correspondence Problem for Five Pairs of Words}},
  booktitle =	{32nd International Symposium on Theoretical Aspects of Computer Science (STACS 2015)},
  pages =	{649--661},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-78-1},
  ISSN =	{1868-8969},
  year =	{2015},
  volume =	{30},
  editor =	{Mayr, Ernst W. and Ollinger, Nicolas},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2015.649},
  URN =		{urn:nbn:de:0030-drops-49486},
  doi =		{10.4230/LIPIcs.STACS.2015.649},
  annote =	{Keywords: tag system, Post correspondence problem, undecidability}
}