@article{AIF_1968__18_2_17_0,
     author = {Singh Niranjan},
     title = {On the absolute {Ces\'aro} summability of factors of {Fourier} series},
     journal = {Annales de l'Institut Fourier},
     pages = {17--30},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {18},
     number = {2},
     year = {1968},
     doi = {10.5802/aif.290},
     mrnumber = {39 #7350},
     zbl = {0183.06102},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.290/}
}