%0 Journal Article
%A H. Hövel
%A U. Westphal
%T Fractional powers of closed operators
%J Studia Mathematica
%D 1972
%P 177-194
%V 42
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-42-2-177-194/
%R 10.4064/sm-42-2-177-194
%G en
%F 10_4064_sm_42_2_177_194