@inproceedings{parys:LIPIcs:2011:3047,
    Address = {Dagstuhl, Germany},
    Annote = {Keywords: pushdown automata},
    Author = {Parys, Pawel},
    BookTitle = {28th International Symposium on Theoretical Aspects of Computer Science (STACS 2011)},
    Editor = {Schwentick, Thomas and D{\"u}rr, Christoph},
    File = {Collapse Operation Increases Expressive Power of Deterministic Higher Order Pushdown Automata - Parys (0) (0) - a - a - a.pdf},
    ISBN = {978-3-939897-25-5},
    ISSN = {1868-8969},
    Keywords = {higher-order pushdown automata and higher-order recursion schemes},
    Pages = {603--614},
    Publisher = {Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
    Series = {Leibniz International Proceedings in Informatics (LIPIcs)},
    Title = {{Collapse Operation Increases Expressive Power of Deterministic Higher Order Pushdown Automata}},
    URL = {http://drops.dagstuhl.de/opus/volltexte/2011/3047},
    Volume = {9},
    Year = {2011},
    bdsk-url-1 = {http://drops.dagstuhl.de/opus/volltexte/2011/3047},
    bdsk-url-2 = {http://dx.doi.org/10.4230/LIPIcs.STACS.2011.603},
    date-added = {2012-03-06 19:00:20 +0100},
    date-modified = {2012-03-06 18:00:49 +0000},
    urn = {urn:nbn:de:0030-drops-30478},
    doi = {10.4230/LIPIcs.STACS.2011.603}
}

@inproceedings{parys:LIPIcs:2011:3047, Address = {Dagstuhl, Germany}, Annote = {Keywords: pushdown automata}, Author = {Parys, Pawel}, BookTitle = {28th International Symposium on Theoretical Aspects of Computer Science (STACS 2011)}, Editor = {Schwentick, Thomas and D{\"u}rr, Christoph}, File = {Collapse Operation Increases Expressive Power of Deterministic Higher Order Pushdown Automata - Parys (0) (0) - a - a - a.pdf}, ISBN = {978-3-939897-25-5}, ISSN = {1868-8969}, Keywords = {higher-order pushdown automata and higher-order recursion schemes}, Pages = {603--614}, Publisher = {Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik}, Series = {Leibniz International Proceedings in Informatics (LIPIcs)}, Title = {{Collapse Operation Increases Expressive Power of Deterministic Higher Order Pushdown Automata}}, URL = {http://drops.dagstuhl.de/opus/volltexte/2011/3047}, Volume = {9}, Year = {2011}, bdsk-url-1 = {http://drops.dagstuhl.de/opus/volltexte/2011/3047}, bdsk-url-2 = {http://dx.doi.org/10.4230/LIPIcs.STACS.2011.603}, date-added = {2012-03-06 19:00:20 +0100}, date-modified = {2012-03-06 18:00:49 +0000}, urn = {urn:nbn:de:0030-drops-30478}, doi = {10.4230/LIPIcs.STACS.2011.603} }