%0 Journal Article %A I. I. Sharapudinov %T Approximation of the solution of the Cauchy problem for nonlinear ODE systems by means of Fourier series in functions orthogonal in the sense of Sobolev %J Daghestan Electronic Mathematical Reports %D 2017 %P 66-76 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DEMR_2017_7_a7/ %G ru %F DEMR_2017_7_a7