%0 Journal Article %A Yung-Ming Chen %T On a maximal theorem of Hardy and Littlewood and theorems concerning Fourier constants. %J Mathematische Zeitschrift %D 1958 %P 418-422 %V 69 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1958__69_169752/ %F MZ_1958__69_169752