@article{GDZPPN002261553, title = {Some theorems concerning infinite series}, journal = {Mathematische Annalen}, volume = {64}, year = {1907}, pages = {77-94}, zbl = {38.0292.02}, url = {http://dml.mathdoc.fr/item/GDZPPN002261553} }
Hardy, G.H. Some theorems concerning infinite series. Mathematische Annalen, Tome 64 (1907) pp. 77-94. http://gdmltest.u-ga.fr/item/GDZPPN002261553/