@article{JAC_2011__34_4_a7,
     author = {Kolins, Samuel R.},
     title = {$f$-vectors of simplicial posets that are balls},
     journal = {Journal of Algebraic Combinatorics},
     pages = {587--605},
     publisher = {mathdoc},
     volume = {34},
     number = {4},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2011__34_4_a7/}
}