%0 Journal Article
%A I. A. Kolesnikova
%T On the construction of a variational principle for a certain class of differential-difference operator equations
%J Contemporary Mathematics. Fundamental Directions
%D 2021
%P 316-323
%V 67
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMFD_2021_67_2_a6/
%G ru
%F CMFD_2021_67_2_a6