%0 Journal Article %A Roy Davies %T Representation of functions of two variables as sums of rectangular functions, I %J Fundamenta Mathematicae %D 1974 %P 177-183 %V 85 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-85-2-177-183/ %R 10.4064/fm-85-2-177-183 %G en %F 10_4064_fm_85_2_177_183