@article{SLC_2005-2006_53_a6,
     author = {Ron M. Adin and Yuval Roichman},
     title = {On {Degrees} in the {Hasse} {Diagram} of the {Strong} {Bruhat} {Order}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {53},
     year = {2005-2006},
     url = {http://geodesic.mathdoc.fr/item/SLC_2005-2006_53_a6/}
}