%0 Journal Article
%A E. Hille
%T On Roots and Logarithms of Elements of a Complex Banach Algebra.
%J Mathematische Annalen
%D 1958
%P 46-57
%V 136
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1958__136_160640/
%F MAN_1958__136_160640