TY  - JOUR
AU  - Jan Persson
TI  - A Note on Formal and Analytic Cauchy Problems for Systems with Constant Coefficients.
JO  - Mathematica Scandinavica
PY  - 1964
SP  - 142
EP  - 146
VL  - 15
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1964__15_165898/
ID  - MS2_1964__15_165898
ER  -