%0 Journal Article %A G. I. Marchuk %A Yu. A. Kuznetsov %T On the question of optimal iteration processes %J Doklady Akademii Nauk %D 1968 %P 1331-1334 %V 181 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_181_6_a8/ %G ru %F DAN_1968_181_6_a8