%0 Journal Article %A V. P. Tanana %A A. B. Bredikhina %T On the optimality of a~generalization of M.\,M.~Lavrent'ev's method in the solution of equations with an error in the operator %J Trudy Instituta matematiki i mehaniki %D 2013 %P 258-263 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2013_19_1_a25/ %G ru %F TIMM_2013_19_1_a25