%0 Journal Article %A M. F. Yakovlev %T Conditions for termination of the two-step iteration processes %J Doklady Akademii Nauk %D 1983 %P 546-548 %V 273 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_273_3_a8/ %G ru %F DAN_1983_273_3_a8