TY  - JOUR
AU  - A. V. Marchenko
TI  - Approximation of the spectrum of an elliptic operator with almost-periodic coefficients
JO  - Matematičeskie zametki
PY  - 1979
SP  - 713
EP  - 724
VL  - 25
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1979_25_5_a7/
LA  - ru
ID  - MZM_1979_25_5_a7
ER  -