@article{MAN_1931__104_159474,
     author = {L. Koschmieder},
     title = {\"Uber die {C-Summierbarkeit} gewisser {Reihen} von {Didon} und {Appell}},
     journal = {Mathematische Annalen},
     pages = {387--402},
     publisher = {mathdoc},
     volume = {104},
     year = {1931},
     zbl = {0001.05904},
     url = {http://geodesic.mathdoc.fr/item/MAN_1931__104_159474/}
}