%0 Journal Article %A N. S. Bakhvalov %T On optimal methods of specifying information during the solution of differential equations %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1962 %P 569-592 %V 2 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1962_2_4_a4/ %G ru %F ZVMMF_1962_2_4_a4