@article{02168693, title = {On further strengthened Hardy-Hilbert's inequality.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2004}, year = {2004}, pages = {1423-1427}, doi = {10.1155/S0161171204205270}, zbl = {1065.26024}, language = {en}, url = {http://dml.mathdoc.fr/item/02168693} }
Lü, Zhongxue. On further strengthened Hardy-Hilbert's inequality.. International Journal of Mathematics and Mathematical Sciences, Tome 2004 (2004) pp. 1423-1427. doi : 10.1155/S0161171204205270. http://gdmltest.u-ga.fr/item/02168693/