TY  - JOUR
AU  - John N. WELCH
TI  - Spectral Properties of a Linear Operator Connected with Solutions of Linear Differential Equations in Banach Spaces.
JO  - Mathematische Annalen
PY  - 1971
SP  - 253
EP  - 256
VL  - 192
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1971__192_162173/
ID  - MAN_1971__192_162173
ER  -