TY  - JOUR
AU  - M. HASEGAWA
TI  - On a Property of the Infinitesimal Generators of Semigroups of Linear Operators.
JO  - Mathematische Annalen
PY  - 1969
SP  - 121
EP  - 126
VL  - 182
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1969__182_161853/
ID  - MAN_1969__182_161853
ER  -