%0 Journal Article %A A. I. Zhukov %T The convergence of a solution of a difference equation to a solution of a differential equation %J Doklady Akademii Nauk %D 1957 %P 174-176 %V 117 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_117_2_a2/ %G ru %F DAN_1957_117_2_a2