%0 Journal Article %A A. M. Popov %T Inverse Problem of the Calculus of Variations for Systems of Differential-Difference Equations of Second Order %J Matematičeskie zametki %D 2002 %P 745-749 %V 72 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2002_72_5_a13/ %G ru %F MZM_2002_72_5_a13