TY  - JOUR
AU  - A. S. Popeluhin
TI  - On local solvability and hypoellipticity of a class of P.D.O. with double characteristics
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1990
SP  - 54
EP  - 56
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1990_6_a11/
LA  - ru
ID  - VMUMM_1990_6_a11
ER  -