@article{MZ_1937__42_168702,
     author = {W., Ne{\ss}},
     title = {\"Uber die {Umordnung} von bedingt konvergenten {Reihen}},
     journal = {Mathematische Zeitschrift},
     pages = {31--50},
     year = {1937},
     volume = {42},
     zbl = {62.0208.02},
     url = {http://geodesic.mathdoc.fr/item/MZ_1937__42_168702/}
}