TY  - JOUR
AU  - Toshinori Oaku
TI  - Analytic Hypo-Ellipticity and Propagation of Regularity for a System of Microdifferential Equations with Non-Involutory Characteristics.
JO  - Mathematische Annalen
PY  - 1984
SP  - 145
EP  - 168
VL  - 269
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1984__269_163927/
ID  - MAN_1984__269_163927
ER  -