@article{MAN_1890__36_157485,
     author = {W\"olffing},
     title = {Ueber die {Hesse'sche} {Covariante} einer ganzen rationalen {Function} von tern\"aren {Formen}},
     journal = {Mathematische Annalen},
     pages = {97--120},
     publisher = {mathdoc},
     volume = {36},
     year = {1890},
     zbl = {22.0152.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1890__36_157485/}
}