@article{GDZPPN002263998,
title = {\"Uber summierbare trigonometrische Reihen},
journal = {Mathematische Annalen},
volume = {71},
year = {1912},
pages = {54-75},
zbl = {42.0282.01},
url = {http://dml.mathdoc.fr/item/GDZPPN002263998}
}
Riesz, M. Über summierbare trigonometrische Reihen. Mathematische Annalen, Tome 71 (1912) pp. 54-75. http://gdmltest.u-ga.fr/item/GDZPPN002263998/