@article{MZ_1942__47_168968,
     author = {H., Hadwiger},
     title = {Ein {Satz} \"uber bedingt konvergente {Vektorreihen}},
     journal = {Mathematische Zeitschrift},
     pages = {663--668},
     publisher = {mathdoc},
     volume = {47},
     year = {1942},
     zbl = {0026.10704},
     url = {http://geodesic.mathdoc.fr/item/MZ_1942__47_168968/}
}