@article{MZ_1926__24_174973,
     author = {A, Zygmund},
     title = {Sur la th\'eorie riemannienne des s\'eries trigonom\'etriques .},
     journal = {Mathematische Zeitschrift},
     pages = {47--104},
     publisher = {mathdoc},
     volume = {24},
     year = {1926},
     zbl = {51.0219.04},
     url = {http://geodesic.mathdoc.fr/item/MZ_1926__24_174973/}
}