%0 Journal Article %A V. V. Kazakevich %T On the elimination of the effect of low-frequency perturbations %J Doklady Akademii Nauk %D 1977 %P 284-287 %V 235 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_235_2_a10/ %G ru %F DAN_1977_235_2_a10