@article{Moriya198975,
    Author = {Moriya, Etsuro},
    File = {A grammatical characterization of alternating pushdown automata - Moriya (0) (0) - a - a - z.pdf},
    ISSN = {0304-3975},
    Journal = {Theoretical Computer Science},
    Number = {1},
    Pages = {75 - 85},
    Title = {A grammatical characterization of alternating pushdown automata},
    URL = {http://www.sciencedirect.com/science/article/pii/0304397589900236},
    Volume = {67},
    Year = {1989},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0304397589900236},
    bdsk-url-2 = {http://dx.doi.org/10.1016/0304-3975(89)90023-6},
    date-added = {2014-03-23 17:42:15 +0000},
    date-modified = {2014-03-23 17:42:15 +0000},
    doi = {10.1016/0304-3975(89)90023-6}
}

@article{Moriya198975, Author = {Moriya, Etsuro}, File = {A grammatical characterization of alternating pushdown automata - Moriya (0) (0) - a - a - z.pdf}, ISSN = {0304-3975}, Journal = {Theoretical Computer Science}, Number = {1}, Pages = {75 - 85}, Title = {A grammatical characterization of alternating pushdown automata}, URL = {http://www.sciencedirect.com/science/article/pii/0304397589900236}, Volume = {67}, Year = {1989}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0304397589900236}, bdsk-url-2 = {http://dx.doi.org/10.1016/0304-3975(89)90023-6}, date-added = {2014-03-23 17:42:15 +0000}, date-modified = {2014-03-23 17:42:15 +0000}, doi = {10.1016/0304-3975(89)90023-6} }