TY  - JOUR
AU  - A. A. Kotel'nikova
TI  - On the gaps in the spectrum of an elliptic operator on a~periodic grid
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 2004
SP  - 963
EP  - 965
VL  - 59
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_2004_59_5_a10/
LA  - en
ID  - RM_2004_59_5_a10
ER  -