@incollection{AST_1988__168__61_0,
     author = {Shoji, Toshiaki},
     title = {Geometry of orbits and {Springer} correspondence},
     booktitle = {Orbites unipotentes et repr\'esentations - I. Groupes finis et Alg\`ebres de Hecke},
     series = {Ast\'erisque},
     pages = {61--140},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {168},
     year = {1988},
     zbl = {0769.20018},
     language = {en},
     url = {http://www.numdam.org/item/AST_1988__168__61_0/}
}