%0 Journal Article %A M. Sh. Shabozov %A M. S. Saidusaynov %T Approximation of functions of a complex variable by Fourier sums in orthogonal systems in $L_2$ %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2020 %P 65-72 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2020_6_a7/ %G ru %F IVM_2020_6_a7