TY  - JOUR
AU  - O. Ya. Savchenko
TI  - Determination of a domain inside of which there is an eigenvalue of a differential equation
JO  - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
PY  - 1985
SP  - 1327
EP  - 1335
VL  - 25
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZVMMF_1985_25_9_a5/
LA  - ru
ID  - ZVMMF_1985_25_9_a5
ER  -