TY  - JOUR
AU  - R. A. Aleksandryan
TI  - Spectral properties of operators arising from systems of differential equations of Sobolev type
JO  - Trudy Moskovskogo matematičeskogo obŝestva
PY  - 1960
SP  - 455
EP  - 505
VL  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MMO_1960_9_a16/
LA  - ru
ID  - MMO_1960_9_a16
ER  -