@article{Greibach:1980:SPS:322217.322224,
    Address = {New York, NY, USA},
    Author = {Greibach, S. A. and Friedman, E. P.},
    File = {Superdeterministic PDAs A Subcase with a Decidable Inclusion problem - Greibach, Friedman (0) (0) - a - a - f.pdf},
    ISSN = {0004-5411},
    Journal = {J. ACM},
    Month = {October},
    Number = {4},
    Pages = {675--700},
    Publisher = {ACM},
    Title = {Superdeterministic PDAs: A Subcase with a Decidable Inclusion problem},
    URL = {http://doi.acm.org/10.1145/322217.322224},
    Volume = {27},
    Year = {1980},
    acmid = {322224},
    bdsk-url-1 = {http://doi.acm.org/10.1145/322217.322224},
    bdsk-url-2 = {http://dx.doi.org/10.1145/322217.322224},
    date-added = {2013-07-04 10:14:33 +0000},
    date-modified = {2013-07-04 10:14:33 +0000},
    issue_date = {Oct. 1980},
    numpages = {26},
    doi = {10.1145/322217.322224}
}

@article{Greibach:1980:SPS:322217.322224, Address = {New York, NY, USA}, Author = {Greibach, S. A. and Friedman, E. P.}, File = {Superdeterministic PDAs A Subcase with a Decidable Inclusion problem - Greibach, Friedman (0) (0) - a - a - f.pdf}, ISSN = {0004-5411}, Journal = {J. ACM}, Month = {October}, Number = {4}, Pages = {675--700}, Publisher = {ACM}, Title = {Superdeterministic PDAs: A Subcase with a Decidable Inclusion problem}, URL = {http://doi.acm.org/10.1145/322217.322224}, Volume = {27}, Year = {1980}, acmid = {322224}, bdsk-url-1 = {http://doi.acm.org/10.1145/322217.322224}, bdsk-url-2 = {http://dx.doi.org/10.1145/322217.322224}, date-added = {2013-07-04 10:14:33 +0000}, date-modified = {2013-07-04 10:14:33 +0000}, issue_date = {Oct. 1980}, numpages = {26}, doi = {10.1145/322217.322224} }