@book{AST_1989__173-174_,
     author = {Collectif},
     title = {Orbites unipotentes et repr\'esentations {III.} {Orbites} et faisceaux pervers},
     series = {Ast\'erisque},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {173-174},
     year = {1989},
     zbl = {0682.00007},
     language = {mul},
     url = {http://www.numdam.org/item/AST_1989__173-174_/}
}