@article{1077375772, author = {Spira, Robert}, title = {An inequality for the Riemann zeta function}, journal = {Duke Math. J.}, volume = {32}, number = {1}, year = {1965}, pages = { 247-250}, language = {en}, url = {http://dml.mathdoc.fr/item/1077375772} }
Spira, Robert. An inequality for the Riemann zeta function. Duke Math. J., Tome 32 (1965) no. 1, pp. 247-250. http://gdmltest.u-ga.fr/item/1077375772/