%0 Journal Article %A M. K. Potapov %T The Fourier coefficients of periodic functions belonging to the $H$-classes of S.\,M.~Nikolʹskii %J Doklady Akademii Nauk %D 1961 %P 564-567 %V 141 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_141_3_a12/ %G ru %F DAN_1961_141_3_a12