TY  - JOUR
AU  - A. V. Badanin
AU  - E. L. Korotyaev
TI  - Spectral estimates for a~periodic fourth-order operator
JO  - Algebra i analiz
PY  - 2010
SP  - 1
EP  - 48
VL  - 22
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AA_2010_22_5_a0/
LA  - ru
ID  - AA_2010_22_5_a0
ER  -