@article {IOPORT.05717268,
    author       = {Gessel, Ira M. and Larcombe, Peter J.},
    title        = {The sum $16^n\sum_{k=0}^{2n} 4^k\binom{\frac 12}{k} \binom{-\frac 12}{k} \binom{-2k}{2n-k}$: a third proof of its closed form.},
    year         = {2009},
    journal      = {Utilitas Mathematica},
    volume       = {80},
    issn         = {0315-3681},
    pages        = {59-63},
    publisher    = {University of Natal, Department of Mathematics and Applied Mathematics, Durban},
    abstract     = {Summary: We present a third proof of an interesting binomial coefficient identity using a generating function approach.},
    identifier   = {05717268},
}