@inproceedings{haase_et_al:LIPIcs:2016:5742,
    Address = {Dagstuhl, Germany},
    Annote = {Keywords: language equivalence, commutative grammars, presburger arithmetic, semi-linear sets, petri nets},
    Author = {Haase, Christoph and Hofman, Piotr},
    BookTitle = {33rd Symposium on Theoretical Aspects of Computer Science (STACS 2016)},
    Editor = {Ollinger, Nicolas and Vollmer, Heribert},
    File = {Tightening the Complexity of Equivalence Problems for Commutative Grammars - Haase, Hofman (0) (0) - a - a - n.pdf},
    ISBN = {978-3-95977-001-9},
    ISSN = {1868-8969},
    Pages = {41:1--41:14},
    Publisher = {Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
    Series = {Leibniz International Proceedings in Informatics (LIPIcs)},
    Title = {{Tightening the Complexity of Equivalence Problems for Commutative Grammars}},
    URL = {http://drops.dagstuhl.de/opus/volltexte/2016/5742},
    Volume = {47},
    Year = {2016},
    bdsk-url-1 = {http://drops.dagstuhl.de/opus/volltexte/2016/5742},
    bdsk-url-2 = {http://dx.doi.org/10.4230/LIPIcs.STACS.2016.41},
    date-added = {2016-02-29 10:18:57 +0000},
    date-modified = {2016-02-29 10:18:57 +0000},
    urn = {urn:nbn:de:0030-drops-57422},
    doi = {10.4230/LIPIcs.STACS.2016.41}
}

@inproceedings{haase_et_al:LIPIcs:2016:5742, Address = {Dagstuhl, Germany}, Annote = {Keywords: language equivalence, commutative grammars, presburger arithmetic, semi-linear sets, petri nets}, Author = {Haase, Christoph and Hofman, Piotr}, BookTitle = {33rd Symposium on Theoretical Aspects of Computer Science (STACS 2016)}, Editor = {Ollinger, Nicolas and Vollmer, Heribert}, File = {Tightening the Complexity of Equivalence Problems for Commutative Grammars - Haase, Hofman (0) (0) - a - a - n.pdf}, ISBN = {978-3-95977-001-9}, ISSN = {1868-8969}, Pages = {41:1--41:14}, Publisher = {Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik}, Series = {Leibniz International Proceedings in Informatics (LIPIcs)}, Title = {{Tightening the Complexity of Equivalence Problems for Commutative Grammars}}, URL = {http://drops.dagstuhl.de/opus/volltexte/2016/5742}, Volume = {47}, Year = {2016}, bdsk-url-1 = {http://drops.dagstuhl.de/opus/volltexte/2016/5742}, bdsk-url-2 = {http://dx.doi.org/10.4230/LIPIcs.STACS.2016.41}, date-added = {2016-02-29 10:18:57 +0000}, date-modified = {2016-02-29 10:18:57 +0000}, urn = {urn:nbn:de:0030-drops-57422}, doi = {10.4230/LIPIcs.STACS.2016.41} }