@article{10_37236_69,
     author = {Uwe Nagel and Victor Reiner},
     title = {Betti numbers of monomial ideals and shifted skew shapes},
     journal = {The electronic journal of combinatorics},
     year = {2009},
     volume = {16},
     number = {2},
     doi = {10.37236/69},
     zbl = {1186.13022},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/69/}
}