TY  - JOUR
AU  - N. N. Yakovlev
TI  - On the spectrum of the Schr\"odinger operator with small periodic potential in dimensions two and three
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1987
SP  - 77
EP  - 79
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1987_2_a21/
LA  - ru
ID  - VMUMM_1987_2_a21
ER  -