@article{SLC_2002-2004_49_a3,
     author = {Steen Ryom-Hansen},
     title = {Littelmann's {Refined} {Demazure} {Character} {Formula} {Revisited}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {2002-2004},
     volume = {49},
     url = {http://geodesic.mathdoc.fr/item/SLC_2002-2004_49_a3/}
}