TY  - JOUR
AU  - V. Zh. Dumanyan
TI  - On compactness of a class of first order linear differential operators
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 2011
SP  - 17
EP  - 21
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_2011_2_a2/
LA  - en
ID  - UZERU_2011_2_a2
ER  -