@article{Boasson1980285,
    Author = {Boasson, Luc and Nivat, Maurice},
    File = {Adherences of languages - Boasson, Nivat (0) (0) - a - a - o.pdf},
    ISSN = {0022-0000},
    Journal = {Journal of Computer and System Sciences},
    Keywords = {classic},
    Number = {3},
    Pages = {285 - 309},
    Title = {Adherences of languages},
    URL = {http://www.sciencedirect.com/science/article/pii/0022000080900100},
    Volume = {20},
    Year = {1980},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0022000080900100},
    bdsk-url-2 = {http://dx.doi.org/10.1016/0022-0000(80)90010-0},
    date-added = {2014-01-28 19:22:32 +0000},
    date-modified = {2014-01-28 19:23:17 +0000},
    doi = {10.1016/0022-0000(80)90010-0}
}

@article{Boasson1980285, Author = {Boasson, Luc and Nivat, Maurice}, File = {Adherences of languages - Boasson, Nivat (0) (0) - a - a - o.pdf}, ISSN = {0022-0000}, Journal = {Journal of Computer and System Sciences}, Keywords = {classic}, Number = {3}, Pages = {285 - 309}, Title = {Adherences of languages}, URL = {http://www.sciencedirect.com/science/article/pii/0022000080900100}, Volume = {20}, Year = {1980}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0022000080900100}, bdsk-url-2 = {http://dx.doi.org/10.1016/0022-0000(80)90010-0}, date-added = {2014-01-28 19:22:32 +0000}, date-modified = {2014-01-28 19:23:17 +0000}, doi = {10.1016/0022-0000(80)90010-0} }