@article{1077465580, author = {Lewis, D. J.}, title = {Singular quartic forms}, journal = {Duke Math. J.}, volume = {21}, number = {1}, year = {1954}, pages = { 39-44}, language = {en}, url = {http://dml.mathdoc.fr/item/1077465580} }
Lewis, D. J. Singular quartic forms. Duke Math. J., Tome 21 (1954) no. 1, pp. 39-44. http://gdmltest.u-ga.fr/item/1077465580/