@InProceedings{lehtinen_et_al:LIPIcs.CSL.2015.457,
  author =	{Lehtinen, Karoliina and Quickert, Sandra},
  title =	{{Deciding the First Levels of the Modal mu Alternation Hierarchy by Formula Construction}},
  booktitle =	{24th EACSL Annual Conference on Computer Science Logic (CSL 2015)},
  pages =	{457--471},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-90-3},
  ISSN =	{1868-8969},
  year =	{2015},
  volume =	{41},
  editor =	{Kreutzer, Stephan},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2015.457},
  URN =		{urn:nbn:de:0030-drops-54316},
  doi =		{10.4230/LIPIcs.CSL.2015.457},
  annote =	{Keywords: modal mu calculus, fixpoint logic, alternation hierarchy}
}