@article{10_4064_sm_2_1_221_227,
     author = {R. Paley and A. Zygmund},
     title = {On the partial sums of {Fourier} series},
     journal = {Studia Mathematica},
     pages = {221--227},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1930},
     doi = {10.4064/sm-2-1-221-227},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-2-1-221-227/}
}