%0 Journal Article %A V. Sh. Tsagareishvili %T Functional conditions for the convergence of Fourier series with respect to general orthonormal systems %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2011 %P 68-74 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2011_5_a8/ %G ru %F IVM_2011_5_a8