%0 Journal Article %A N. Ya. Tikhonenko %A A. M. Chadaev %T On the approximate solution of some mixed boundary value problems for infinite systems of differential-difference equations %J Differencialʹnye uravneniâ %D 1993 %P 1542-1549 %V 29 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_9_a7/ %G ru %F DE_1993_29_9_a7