@article{MZ_1937__42_168725,
     author = {E., Lammel},
     title = {\"Uber gewisse {Reihen,} welche die {Potenzreihen} als {Grenzfall} enthalten},
     journal = {Mathematische Zeitschrift},
     pages = {389--398},
     publisher = {mathdoc},
     volume = {42},
     year = {1937},
     zbl = {0016.02002},
     url = {http://geodesic.mathdoc.fr/item/MZ_1937__42_168725/}
}