@article{Howell1986107,
    Author = {Howell, Rodney R. and Rosier, Louis E. and Huynh, Dung T. and Yen, Hsu-Chun},
    File = {Some complexity bounds for problems concerning finite and 2-dimensional vector addition systems with states - Howell, Rosier, Huynh, Yen (0) (0) - a - a - k.pdf},
    ISSN = {0304-3975},
    Journal = {Theoretical Computer Science},
    Keywords = {vector addition systems},
    Number = {0},
    Pages = {107 - 140},
    Title = {Some complexity bounds for problems concerning finite and 2-dimensional vector addition systems with states},
    URL = {http://www.sciencedirect.com/science/article/pii/0304397586900265},
    Volume = {46},
    Year = {1986},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0304397586900265},
    bdsk-url-2 = {http://dx.doi.org/10.1016/0304-3975(86)90026-5},
    date-added = {2013-11-04 12:58:41 +0000},
    date-modified = {2013-11-04 12:58:56 +0000},
    doi = {10.1016/0304-3975(86)90026-5}
}

@article{Howell1986107, Author = {Howell, Rodney R. and Rosier, Louis E. and Huynh, Dung T. and Yen, Hsu-Chun}, File = {Some complexity bounds for problems concerning finite and 2-dimensional vector addition systems with states - Howell, Rosier, Huynh, Yen (0) (0) - a - a - k.pdf}, ISSN = {0304-3975}, Journal = {Theoretical Computer Science}, Keywords = {vector addition systems}, Number = {0}, Pages = {107 - 140}, Title = {Some complexity bounds for problems concerning finite and 2-dimensional vector addition systems with states}, URL = {http://www.sciencedirect.com/science/article/pii/0304397586900265}, Volume = {46}, Year = {1986}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0304397586900265}, bdsk-url-2 = {http://dx.doi.org/10.1016/0304-3975(86)90026-5}, date-added = {2013-11-04 12:58:41 +0000}, date-modified = {2013-11-04 12:58:56 +0000}, doi = {10.1016/0304-3975(86)90026-5} }