TY  - JOUR
AU  - I. V. Suveyka
TI  - The exterior boundary value problem for an operator which decomposes into Helmholtz operators
JO  - Differencialʹnye uravneniâ
PY  - 1968
SP  - 1667
EP  - 1675
VL  - 4
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1968_4_9_a12/
LA  - ru
ID  - DE_1968_4_9_a12
ER  -