@article{Garland1973119,
    Author = {Garland, Stephen J. and Luckham, David C.},
    File = {Program schemes, recursion schemes, and formal languages - Garland, Luckham (0) (0) - a - a - q.pdf},
    ISSN = {0022-0000},
    Journal = {Journal of Computer and System Sciences},
    Keywords = {recursive schemes},
    Number = {2},
    Pages = {119 - 160},
    Title = {Program schemes, recursion schemes, and formal languages},
    URL = {http://www.sciencedirect.com/science/article/pii/S0022000073800406},
    Volume = {7},
    Year = {1973},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/S0022000073800406},
    bdsk-url-2 = {http://dx.doi.org/10.1016/S0022-0000(73)80040-6},
    date-added = {2013-07-01 12:16:20 +0000},
    date-modified = {2013-07-09 13:58:44 +0000},
    doi = {10.1016/S0022-0000(73)80040-6}
}

@article{Garland1973119, Author = {Garland, Stephen J. and Luckham, David C.}, File = {Program schemes, recursion schemes, and formal languages - Garland, Luckham (0) (0) - a - a - q.pdf}, ISSN = {0022-0000}, Journal = {Journal of Computer and System Sciences}, Keywords = {recursive schemes}, Number = {2}, Pages = {119 - 160}, Title = {Program schemes, recursion schemes, and formal languages}, URL = {http://www.sciencedirect.com/science/article/pii/S0022000073800406}, Volume = {7}, Year = {1973}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/S0022000073800406}, bdsk-url-2 = {http://dx.doi.org/10.1016/S0022-0000(73)80040-6}, date-added = {2013-07-01 12:16:20 +0000}, date-modified = {2013-07-09 13:58:44 +0000}, doi = {10.1016/S0022-0000(73)80040-6} }