@article{JRAM_1908__134_149285,
     author = {Oskar Perron},
     title = {Zur {Theorie} der {Dirichletschen} {Reihen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {95--143},
     publisher = {mathdoc},
     volume = {134},
     year = {1908},
     zbl = {39.0328.02},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1908__134_149285/}
}