@InProceedings{afshari_et_al:LIPIcs.CSL.2013.30,
  author =	{Afshari, Bahareh and Leigh, Graham E.},
  title =	{{On closure ordinals for the modal mu-calculus}},
  booktitle =	{Computer Science Logic 2013 (CSL 2013)},
  pages =	{30--44},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-60-6},
  ISSN =	{1868-8969},
  year =	{2013},
  volume =	{23},
  editor =	{Ronchi Della Rocca, Simona},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2013.30},
  URN =		{urn:nbn:de:0030-drops-41889},
  doi =		{10.4230/LIPIcs.CSL.2013.30},
  annote =	{Keywords: Closure ordinals, Modal mu-calculus, Tableaux}
}