@article{SANDS1978219,
    Author = {Sands, A.D.},
    File = {1-s2.0-0012365X78900948-main (0) - a - a - p.pdf},
    ISSN = {0012-365X},
    Journal = {Discrete Mathematics},
    Number = {2},
    Pages = {219 - 221},
    Title = {On generalised catalan numbers},
    URL = {http://www.sciencedirect.com/science/article/pii/0012365X78900948},
    Volume = {21},
    Year = {1978},
    bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0012365X78900948},
    bdsk-url-2 = {https://doi.org/10.1016/0012-365X(78)90094-8},
    date-added = {2018-04-30 19:18:47 +0000},
    date-modified = {2018-04-30 19:18:47 +0000},
    doi = {10.1016/0012-365X(78)90094-8}
}

@article{SANDS1978219, Author = {Sands, A.D.}, File = {1-s2.0-0012365X78900948-main (0) - a - a - p.pdf}, ISSN = {0012-365X}, Journal = {Discrete Mathematics}, Number = {2}, Pages = {219 - 221}, Title = {On generalised catalan numbers}, URL = {http://www.sciencedirect.com/science/article/pii/0012365X78900948}, Volume = {21}, Year = {1978}, bdsk-url-1 = {http://www.sciencedirect.com/science/article/pii/0012365X78900948}, bdsk-url-2 = {https://doi.org/10.1016/0012-365X(78)90094-8}, date-added = {2018-04-30 19:18:47 +0000}, date-modified = {2018-04-30 19:18:47 +0000}, doi = {10.1016/0012-365X(78)90094-8} }