TY  - JOUR
AU  - A. G. Ramm
TI  - Expansion in eigenfunctions of a nonselfadjoint differential operator of an exterior boundary value problem
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 737
EP  - 742
VL  - 7
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_4_a12/
LA  - ru
ID  - DE_1971_7_4_a12
ER  -