%0 Journal Article %A V. È. Gheit %T Structural and constructive properties of sine and cosine series with monotone sequence of Fourier coefficients %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1969 %P 39-47 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1969_7_a4/ %G ru %F IVM_1969_7_a4