@article{10_1090_S0894_0347_03_00428_4,
     author = {Barvinok, Alexander and Woods, Kevin},
     title = {Short rational generating functions for lattice point problems},
     journal = {Journal of the American Mathematical Society},
     pages = {957--979},
     year = {2003},
     volume = {16},
     number = {4},
     doi = {10.1090/S0894-0347-03-00428-4},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-03-00428-4/}
}