TY  - JOUR
AU  - T. O. Shaposhnikova
TI  - A~priori estimates of the error of the Ritz method in the eigenvalue problem of degenerate higher order elliptic operators
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1973
SP  - 99
EP  - 108
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1973_5_a13/
LA  - ru
ID  - IVM_1973_5_a13
ER  -