%0 Journal Article %A L. V. Zhizhiashvili %T On simple and multiple Fourier series %J Doklady Akademii Nauk %D 1975 %P 256-258 %V 225 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_225_2_a2/ %G ru %F DAN_1975_225_2_a2