@article{MZ_1939__45_168856,
     author = {J., Mall},
     title = {Ein {Satz} \"uber die {Konvergenz} von {Kettenbr\"uchen}},
     journal = {Mathematische Zeitschrift},
     pages = {368--376},
     publisher = {mathdoc},
     volume = {45},
     year = {1939},
     zbl = {65.0229.05},
     url = {http://geodesic.mathdoc.fr/item/MZ_1939__45_168856/}
}