@article{IM_1973__21_142233,
     author = {Michel Demazure},
     title = {Invariants sym\'etriques entiers des groupes de {Weyl} et torsion.},
     journal = {Inventiones mathematicae},
     pages = {287--302},
     year = {1973},
     volume = {21},
     zbl = {0269.22010},
     url = {http://geodesic.mathdoc.fr/item/IM_1973__21_142233/}
}