@article{IM_1994__118_1_144240,
     author = {Francesco Brenti},
     title = {A combinatorial formula for {Kazhdan-Lusztig} polynomials.},
     journal = {Inventiones mathematicae},
     pages = {371--394},
     year = {1994},
     volume = {118},
     number = {1},
     zbl = {0836.20054},
     url = {http://geodesic.mathdoc.fr/item/IM_1994__118_1_144240/}
}