@article{MAN_1986__274_164089,
     author = {Iris Muller and Hubert Rubenthaler and G\'erard Schiffmann},
     title = {Structure des espaces pr\'ehomog\`enes associ\'es \`a certaines alg\`ebres de {Lie} gradu\'ees.},
     journal = {Mathematische Annalen},
     pages = {95--124},
     publisher = {mathdoc},
     volume = {274},
     year = {1986},
     zbl = {0568.17007},
     url = {http://geodesic.mathdoc.fr/item/MAN_1986__274_164089/}
}