TY  - JOUR
AU  - V. A. Il'in
TI  - Existence of a~reduced system of eigen- and associated functions for a~nonselfadjoint ordinary differential operator
JO  - Informatics and Automation
PY  - 1976
SP  - 148
EP  - 155
VL  - 142
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1976_142_a9/
LA  - ru
ID  - TRSPY_1976_142_a9
ER  -