%0 Journal Article %A A. S. Leonov %T On algorithms for an approximate solution of nonlinear ill-posed problems with a perturbed operator %J Doklady Akademii Nauk %D 1979 %P 300-304 %V 245 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_245_2_a6/ %G ru %F DAN_1979_245_2_a6