%0 Journal Article %A S. I. Ibragimov %T On the completeness of two systems of analytic functions %J Doklady Akademii Nauk %D 1973 %P 1240-1242 %V 213 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_213_6_a2/ %G ru %F DAN_1973_213_6_a2