@inproceedings{LehtinenQuickert:CSL:2015,
    Address = {Dagstuhl, Germany},
    Annote = {Keywords: modal mu calculus, fixpoint logic, alternation hierarchy},
    Author = {Lehtinen, Karoliina and Quickert, Sandra},
    BookTitle = {Proc. of CSL'15},
    Editor = {Kreutzer, Stephan},
    File = {Deciding the First Levels of the Modal mu Alternation Hierarchy by Formula Construction - Lehtinen, Quickert (0) (0) - a - a - a.pdf},
    ISBN = {978-3-939897-90-3},
    ISSN = {1868-8969},
    Pages = {457--471},
    Publisher = {Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
    Series = {Leibniz International Proceedings in Informatics (LIPIcs)},
    Title = {{Deciding the First Levels of the Modal mu Alternation Hierarchy by Formula Construction}},
    URL = {http://drops.dagstuhl.de/opus/volltexte/2015/5431},
    Volume = {41},
    Year = {2015},
    bdsk-url-1 = {http://drops.dagstuhl.de/opus/volltexte/2015/5431},
    bdsk-url-2 = {http://dx.doi.org/10.4230/LIPIcs.CSL.2015.457},
    date-added = {2015-09-09 08:40:56 +0000},
    date-modified = {2020-08-11 12:22:01 +0200},
    urn = {urn:nbn:de:0030-drops-54316},
    doi = {10.4230/LIPIcs.CSL.2015.457}
}

@inproceedings{LehtinenQuickert:CSL:2015, Address = {Dagstuhl, Germany}, Annote = {Keywords: modal mu calculus, fixpoint logic, alternation hierarchy}, Author = {Lehtinen, Karoliina and Quickert, Sandra}, BookTitle = {Proc. of CSL'15}, Editor = {Kreutzer, Stephan}, File = {Deciding the First Levels of the Modal mu Alternation Hierarchy by Formula Construction - Lehtinen, Quickert (0) (0) - a - a - a.pdf}, ISBN = {978-3-939897-90-3}, ISSN = {1868-8969}, Pages = {457--471}, Publisher = {Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik}, Series = {Leibniz International Proceedings in Informatics (LIPIcs)}, Title = {{Deciding the First Levels of the Modal mu Alternation Hierarchy by Formula Construction}}, URL = {http://drops.dagstuhl.de/opus/volltexte/2015/5431}, Volume = {41}, Year = {2015}, bdsk-url-1 = {http://drops.dagstuhl.de/opus/volltexte/2015/5431}, bdsk-url-2 = {http://dx.doi.org/10.4230/LIPIcs.CSL.2015.457}, date-added = {2015-09-09 08:40:56 +0000}, date-modified = {2020-08-11 12:22:01 +0200}, urn = {urn:nbn:de:0030-drops-54316}, doi = {10.4230/LIPIcs.CSL.2015.457} }