%0 Journal Article %A N. S. Bakhvalov %T Evaluations of the closeness of solutions of the Cauchy problem for non-linear differential equations %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1966 %P 229-237 %V 6 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1966_6_2_a3/ %G ru %F ZVMMF_1966_6_2_a3