@inproceedings{Kartzow:Parys:MFCS:2012,
    Address = {Berlin, Heidelberg},
    Author = {Kartzow, Alexander and Parys, Pawe\l},
    BookTitle = {Proc. of MFCS'12},
    ISBN = {978-3-642-32588-5},
    Location = {Bratislava, Slovakia},
    Pages = {566--577},
    Publisher = {Springer-Verlag},
    Series = {MFCS'12},
    Title = {Strictness of the Collapsible Pushdown Hierarchy},
    URL = {http://dx.doi.org/10.1007/978-3-642-32589-2\_50},
    Year = {2012},
    acmid = {2368980},
    bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-642-32589-2\_50},
    date-added = {2015-10-06 13:41:35 +0000},
    date-modified = {2015-10-06 13:41:51 +0000},
    numpages = {12},
    doi = {10.1007/978-3-642-32589-2_50}
}

@inproceedings{Kartzow:Parys:MFCS:2012, Address = {Berlin, Heidelberg}, Author = {Kartzow, Alexander and Parys, Pawe\l}, BookTitle = {Proc. of MFCS'12}, ISBN = {978-3-642-32588-5}, Location = {Bratislava, Slovakia}, Pages = {566--577}, Publisher = {Springer-Verlag}, Series = {MFCS'12}, Title = {Strictness of the Collapsible Pushdown Hierarchy}, URL = {http://dx.doi.org/10.1007/978-3-642-32589-2_50}, Year = {2012}, acmid = {2368980}, bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-642-32589-2_50}, date-added = {2015-10-06 13:41:35 +0000}, date-modified = {2015-10-06 13:41:51 +0000}, numpages = {12}, doi = {10.1007/978-3-642-32589-2_50} }