TY  - JOUR
AU  - A. I. Kozhanov
TI  - Ultraparabolic equations with operator coefficients at the time derivatives
JO  - The Bulletin of Irkutsk State University. Series Mathematics
PY  - 2019
SP  - 120
EP  - 137
VL  - 29
UR  - http://geodesic.mathdoc.fr/item/IIGUM_2019_29_a10/
LA  - en
ID  - IIGUM_2019_29_a10
ER  -