@article{IM_1978__50_142603,
     author = {Gerald W. Schwarz},
     title = {Representations of {Simple} {Lie} {Groups} with a {Free} {Module} of {Covariants.}},
     journal = {Inventiones mathematicae},
     pages = {1--12},
     publisher = {mathdoc},
     volume = {50},
     year = {1978},
     zbl = {0391.20033},
     url = {http://geodesic.mathdoc.fr/item/IM_1978__50_142603/}
}