TY  - JOUR
AU  - R. A. Aleksandryan
TI  - Operators generated by systems of differential equations of Sobolev type
JO  - Doklady Akademii Nauk
PY  - 1960
SP  - 471
EP  - 474
VL  - 131
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1960_131_3_a0/
LA  - ru
ID  - DAN_1960_131_3_a0
ER  -