TY  - JOUR
AU  - O. A. Veliev
TI  - Asymptotic formulas for the eigenvalues of a periodic Schr\"odinger operator and the Bethe--Sommerfeld conjecture
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1987
SP  - 1
EP  - 15
VL  - 21
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1987_21_2_a0/
LA  - ru
ID  - FAA_1987_21_2_a0
ER  -