TY  - JOUR
AU  - I. A. Kolesnikova
TI  - On the construction of a variational principle for a certain class of differential-difference operator equations
JO  - Contemporary Mathematics. Fundamental Directions
PY  - 2021
SP  - 316
EP  - 323
VL  - 67
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMFD_2021_67_2_a6/
LA  - ru
ID  - CMFD_2021_67_2_a6
ER  -