@article{MAN_1996__306_3_165462,
     author = {H.E.A. Campbell and I.P. Hughes},
     title = {The ring of upper triangular invariants as a module over the {Dickson} invariants.},
     journal = {Mathematische Annalen},
     pages = {429--444},
     publisher = {mathdoc},
     volume = {306},
     number = {3},
     year = {1996},
     zbl = {0863.55011},
     url = {http://geodesic.mathdoc.fr/item/MAN_1996__306_3_165462/}
}