TY  - JOUR
AU  - Lars Hörmander
TI  - On the Existence of Real Analytic Solutions of Partial Differential Equations with Constant Coefficients.
JO  - Inventiones mathematicae
PY  - 1973
SP  - 151
EP  - 182
VL  - 21
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1973__21_142225/
ID  - IM_1973__21_142225
ER  -