%0 Journal Article
%A M. HASEGAWA
%T On a Property of the Infinitesimal Generators of Semigroups of Linear Operators.
%J Mathematische Annalen
%D 1969
%P 121-126
%V 182
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1969__182_161853/
%F MAN_1969__182_161853