TY  - JOUR
AU  - Yu. V. Egorov
AU  - Nguen Min' Chi
TI  - Maximally hypoelliptic operators with a noninvolutive

JO  - Doklady Akademii Nauk
PY  - 1990
SP  - 1059
EP  - 1061
VL  - 314
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1990_314_5_a7/
LA  - ru
ID  - DAN_1990_314_5_a7
ER  -