@article{JRAM_1854__47_147550,
     author = {A. Cayley},
     title = {Nouvelles recherches sur les {Covariants.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {109--124},
     publisher = {mathdoc},
     volume = {47},
     year = {1854},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1854__47_147550/}
}