%0 Journal Article %A A. G. Kamenskii %T Approximate solution of second-order functional-differential equations %J Differencialʹnye uravneniâ %D 1983 %P 2148-2153 %V 19 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_12_a14/ %G ru %F DE_1983_19_12_a14