@article{FLAJOLET1987283,
    Author = {Flajolet, Philippe},
    File = {1-s2.0-0304397587900119-main (0) - a - a - s.pdf},
    ISSN = {0304-3975},
    Journal = {Theoretical Computer Science},
    Number = {2},
    Pages = {283 - 309},
    Title = {Analytic models and ambiguity of context-free languages},
    URL = {http://www.sciencedirect.com/science/article/pii/0304397587900119},
    Volume = {49},
    Year = {1987},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0304397587900119},
    bdsk-url-2 = {https://doi.org/10.1016/0304-3975(87)90011-9},
    date-added = {2018-04-06 16:37:49 +0000},
    date-modified = {2018-04-06 16:37:49 +0000},
    file-2 = {nicaud (0) - a - a - s.pdf},
    doi = {10.1016/0304-3975(87)90011-9}
}

@article{FLAJOLET1987283, Author = {Flajolet, Philippe}, File = {1-s2.0-0304397587900119-main (0) - a - a - s.pdf}, ISSN = {0304-3975}, Journal = {Theoretical Computer Science}, Number = {2}, Pages = {283 - 309}, Title = {Analytic models and ambiguity of context-free languages}, URL = {http://www.sciencedirect.com/science/article/pii/0304397587900119}, Volume = {49}, Year = {1987}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0304397587900119}, bdsk-url-2 = {https://doi.org/10.1016/0304-3975(87)90011-9}, date-added = {2018-04-06 16:37:49 +0000}, date-modified = {2018-04-06 16:37:49 +0000}, file-2 = {nicaud (0) - a - a - s.pdf}, doi = {10.1016/0304-3975(87)90011-9} }