@article{1077473987, author = {Richardson, A. R.}, title = {The composition of cubic forms}, journal = {Duke Math. J.}, volume = {14}, number = {1}, year = {1947}, pages = { 27-30}, language = {en}, url = {http://dml.mathdoc.fr/item/1077473987} }
Richardson, A. R. The composition of cubic forms. Duke Math. J., Tome 14 (1947) no. 1, pp. 27-30. http://gdmltest.u-ga.fr/item/1077473987/