@article{MAN_1911__70_158485,
     author = {E. Landau},
     title = {\"Uber das {Nichtverschwinden} der {Dirichletschen} {Reihen,} welche komplexen {Charakteren} entsprechen},
     journal = {Mathematische Annalen},
     pages = {69--78},
     publisher = {mathdoc},
     volume = {70},
     year = {1911},
     zbl = {41.0289.04},
     url = {http://geodesic.mathdoc.fr/item/MAN_1911__70_158485/}
}