TY  - JOUR
AU  - V. P. Mikhailov
TI  - The first boundary-value problem for certain semi-bounded hypo-elliptic differential operators
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 1257
EP  - 1260
VL  - 149
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_149_6_a3/
LA  - ru
ID  - DAN_1963_149_6_a3
ER  -