@article{IM_1984__75_143096, author = {G. Lusztig}, title = {Intersection cohomology complexes on a reductive group.}, journal = {Inventiones mathematicae}, pages = {205--272}, publisher = {mathdoc}, volume = {75}, year = {1984}, zbl = {0547.20032}, url = {http://geodesic.mathdoc.fr/item/IM_1984__75_143096/} }