@article{IM_1990__99_1_143748,
     author = {Friedrich Knop},
     title = {Weylgruppe und {Momentabbildung.}},
     journal = {Inventiones mathematicae},
     pages = {1--24},
     publisher = {mathdoc},
     volume = {99},
     number = {1},
     year = {1990},
     zbl = {0726.20031},
     url = {http://geodesic.mathdoc.fr/item/IM_1990__99_1_143748/}
}