@article{MAN_1871__3_156485,
     author = {Cayley},
     title = {Note on the theory of {Invariants}},
     journal = {Mathematische Annalen},
     pages = {268--271},
     year = {1871},
     volume = {3},
     zbl = {02.0070.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1871__3_156485/}
}