TY  - JOUR
AU  - A. S. Popeluhin
TI  - Necessary conditions for the local solvability of a class of pseudodifferential operators with double involutive characteristics
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1988
SP  - 98
EP  - 100
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1988_1_a29/
LA  - ru
ID  - VMUMM_1988_1_a29
ER  -