@article{Asveld:1999:IPS:323485.323518,
    Address = {Essex, UK},
    Author = {Asveld, Peter R. J. and Nijholt, Anton},
    File = {The inclusion problem for some subclasses of context-free languages - Asveld, Nijholt (0) (0) - a - a - f.pdf},
    ISSN = {0304-3975},
    Journal = {Theor. Comput. Sci.},
    Keywords = {(restricted) context-free grammar, (restricted) deterministic push-down automation, inclusion problem, unambiguous context-free language},
    Month = {December},
    Number = {1-2},
    Pages = {247--256},
    Publisher = {Elsevier Science Publishers Ltd.},
    Title = {The inclusion problem for some subclasses of context-free languages},
    URL = {http://dx.doi.org/10.1016/S0304-3975(99)00113-9},
    Volume = {230},
    Year = {2000},
    acmid = {323518},
    bdsk-url-1 = {http://dx.doi.org/10.1016/S0304-3975(99)00113-9},
    date-added = {2013-07-04 10:15:31 +0000},
    date-modified = {2018-01-12 12:39:21 +0000},
    issue_date = {Jan. 2000},
    numpages = {10},
    doi = {10.1016/S0304-3975(99)00113-9}
}

@article{Asveld:1999:IPS:323485.323518, Address = {Essex, UK}, Author = {Asveld, Peter R. J. and Nijholt, Anton}, File = {The inclusion problem for some subclasses of context-free languages - Asveld, Nijholt (0) (0) - a - a - f.pdf}, ISSN = {0304-3975}, Journal = {Theor. Comput. Sci.}, Keywords = {(restricted) context-free grammar, (restricted) deterministic push-down automation, inclusion problem, unambiguous context-free language}, Month = {December}, Number = {1-2}, Pages = {247--256}, Publisher = {Elsevier Science Publishers Ltd.}, Title = {The inclusion problem for some subclasses of context-free languages}, URL = {http://dx.doi.org/10.1016/S0304-3975(99)00113-9}, Volume = {230}, Year = {2000}, acmid = {323518}, bdsk-url-1 = {http://dx.doi.org/10.1016/S0304-3975(99)00113-9}, date-added = {2013-07-04 10:15:31 +0000}, date-modified = {2018-01-12 12:39:21 +0000}, issue_date = {Jan. 2000}, numpages = {10}, doi = {10.1016/S0304-3975(99)00113-9} }