TY  - JOUR
AU  - H. A. Petrosyan
TI  - On the properties of the symbols of one class of hypoelliptic equations
JO  - Sibirskij žurnal industrialʹnoj matematiki
PY  - 2019
SP  - 81
EP  - 88
VL  - 22
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SJIM_2019_22_4_a7/
LA  - ru
ID  - SJIM_2019_22_4_a7
ER  -