@article{3202, author = {Alzer, Horst}, title = {On Carleman's inequality}, journal = {Portugaliae mathematica}, volume = {50}, year = {1993}, pages = {331-334}, zbl = {0793.26013}, mrnumber = {1244510}, language = {en}, url = {http://dml.mathdoc.fr/item/3202} }
Alzer, Horst. On Carleman's inequality. Portugaliae mathematica, Tome 50 (1993) pp. 331-334. http://gdmltest.u-ga.fr/item/3202/