TY  - JOUR
AU  - O. A. Akperova
AU  - M. G. Dzhavadov
TI  - Expansion in the eigenfunctions which correspond to a certain part of the set of eigenvalues of a second order nonselfadjoint differential operator
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 503
EP  - 506
VL  - 188
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_188_3_a0/
LA  - ru
ID  - DAN_1969_188_3_a0
ER  -