%0 Journal Article
%A M. A. Aleksidze
%A N. M. Arveladze
%A N. L. Lekishvili
%A K. V. Pertaya
%T The expansion of functions in approximately orthonormal systems
%J Doklady Akademii Nauk
%D 1969
%P 1207-1210
%V 185
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_185_6_a0/
%G ru
%F DAN_1969_185_6_a0