@article{MZ_1926__25_167878,
     author = {A. Zygmund and A. Rajchman},
     title = {Sur la possibilite {d'appUquer} la m\'ethode de {Riemann} aux s\'eries trigonometriques sommables par le proc\'ed\'e de {Poisson}},
     journal = {Mathematische Zeitschrift},
     pages = {261--273},
     publisher = {mathdoc},
     volume = {25},
     year = {1926},
     zbl = {52.0272.01},
     url = {http://geodesic.mathdoc.fr/item/MZ_1926__25_167878/}
}