@article{CMH_1977__52_139694,
     author = {Th. Vust},
     title = {Sur la th\'eorie classique des invariants.},
     journal = {Commentarii mathematici Helvetici},
     pages = {259--296},
     year = {1977},
     volume = {52},
     zbl = {0364.15022},
     url = {http://geodesic.mathdoc.fr/item/CMH_1977__52_139694/}
}