@article{MZ_1932__34_168323,
     author = {S., Sidon},
     title = {Ein {Satz} \"uber {Fouriersche} {Reihen} mit {L\"ucken}},
     journal = {Mathematische Zeitschrift},
     pages = {481--484},
     year = {1932},
     volume = {34},
     zbl = {0004.21201},
     url = {http://geodesic.mathdoc.fr/item/MZ_1932__34_168323/}
}