@article{MOMA_1948__52_176794,
     author = {K. Prachar},
     title = {Zur {Geometrie} der {Reihen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {255--259},
     publisher = {mathdoc},
     volume = {52},
     year = {1948},
     zbl = {0030.35002},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1948__52_176794/}
}