TY  - JOUR
AU  - L. A. Kalyakin
TI  - Ritz method for equations with small parameters for higher derivatives
JO  - Matematičeskie zametki
PY  - 1969
SP  - 91
EP  - 96
VL  - 6
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1969_6_1_a10/
LA  - ru
ID  - MZM_1969_6_1_a10
ER  -