@article{1103039887, author = {Gaddum, Jerry W.}, title = {Linear inequalities and quadratic forms.}, journal = {Pacific J. Math.}, volume = {8}, number = {4}, year = {1958}, pages = { 411-414}, language = {en}, url = {http://dml.mathdoc.fr/item/1103039887} }
Gaddum, Jerry W. Linear inequalities and quadratic forms.. Pacific J. Math., Tome 8 (1958) no. 4, pp. 411-414. http://gdmltest.u-ga.fr/item/1103039887/