%0 Journal Article %A A. Zygmund %T On Fourier coefficients and transforms of functions of two variables %J Studia Mathematica %D 1974 %P 189-201 %V 50 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-50-2-189-201/ %R 10.4064/sm-50-2-189-201 %G en %F 10_4064_sm_50_2_189_201