%0 Journal Article %A Bareladze, G. %T On convergence subsystems of orthonormal systems. %J Georgian Mathematical Journal %D 1994 %P 235-242 %V 1 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/GMJ_1994__1_3_47128/ %G en %F GMJ_1994__1_3_47128