TY  - JOUR
AU  - V. V. Martynov
TI  - Conditions of discreteness and continuity of the spectrum in the case of a self-conjugate system of first order differential equations
JO  - Doklady Akademii Nauk
PY  - 1965
SP  - 996
EP  - 999
VL  - 165
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1965_165_5_a4/
LA  - ru
ID  - DAN_1965_165_5_a4
ER  -