@article{1077468764,
author = {Ward, Morgan},
title = {The vanishing of the homogeneous product sum of the roots of a
cubic},
journal = {Duke Math. J.},
volume = {26},
number = {1},
year = {1959},
pages = { 553-562},
language = {en},
url = {http://dml.mathdoc.fr/item/1077468764}
}
Ward, Morgan. The vanishing of the homogeneous product sum of the roots of a
cubic. Duke Math. J., Tome 26 (1959) no. 1, pp. 553-562. http://gdmltest.u-ga.fr/item/1077468764/