%0 Journal Article %A S. V. Khrushchev %T Perturbation theorems for bases of exponentials and Muckenhoupt's condition %J Doklady Akademii Nauk %D 1979 %P 44-48 %V 247 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_247_1_a9/ %G ru %F DAN_1979_247_1_a9