%0 Journal Article %A V. I. Gryn' %T Two-step iteration regularization methods for the solution of ill-posed problems with a selfadjoint nonnegative operator %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1984 %P 1614-1628 %V 24 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1984_24_11_a1/ %G ru %F ZVMMF_1984_24_11_a1