TY  - JOUR
AU  - V. G. Prikazchikov
TI  - Two-Sided Approximation of Eigenvalues of Some Elliptic Operators
JO  - Differencialʹnye uravneniâ
PY  - 2004
SP  - 994
EP  - 998
VL  - 40
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2004_40_7_a13/
LA  - ru
ID  - DE_2004_40_7_a13
ER  -