TY  - JOUR
AU  - L. P. Tepoyan
TI  - Degenerate first order differential-operator equations
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 2019
SP  - 163
EP  - 169
VL  - 53
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_2019_53_3_a3/
LA  - en
ID  - UZERU_2019_53_3_a3
ER  -