@article{MAN_1907__64_158304,
     author = {G.H. Hardy},
     title = {Some theorems concerning infinite series},
     journal = {Mathematische Annalen},
     pages = {77--94},
     year = {1907},
     volume = {64},
     zbl = {38.0292.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1907__64_158304/}
}