%0 Journal Article %A A. M. Sedletskii %T Approximation by translates and completeness of weighted systems of exponential functions in~$L^2(\mathbf R)$ %J Sbornik. Mathematics %D 1985 %P 91-106 %V 51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1985_51_1_a5/ %G en %F SM_1985_51_1_a5