TY  - JOUR
AU  - Yu. A. Mamedov
TI  - Spectral problems for a system of ordinary differential equations
JO  - Doklady Akademii Nauk
PY  - 1989
SP  - 540
EP  - 544
VL  - 306
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1989_306_3_a5/
LA  - ru
ID  - DAN_1989_306_3_a5
ER  -