@article{05224625, title = {A }, journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]}, volume = {7}, year = {2006}, zbl = {1130.05007}, language = {en}, url = {http://dml.mathdoc.fr/item/05224625} }
Abreu, L.D. A . JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 7 (2006) . http://gdmltest.u-ga.fr/item/05224625/