@article{MAN_1969__181_161834,
     author = {J.A. SIDDIQI},
     title = {Coefficient {Properties} of {Certain} {Fourier} {Series.}},
     journal = {Mathematische Annalen},
     pages = {242--254},
     publisher = {mathdoc},
     volume = {181},
     year = {1969},
     zbl = {0164.07302},
     url = {http://geodesic.mathdoc.fr/item/MAN_1969__181_161834/}
}