TY  - JOUR
AU  - Yu. V. Shestopalov
TI  - On the spectrum of a family of non-self-adjoint boundary value problems for systems of Helmholtz equations
JO  - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
PY  - 1981
SP  - 1459
EP  - 1470
VL  - 21
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZVMMF_1981_21_6_a11/
LA  - ru
ID  - ZVMMF_1981_21_6_a11
ER  -