%0 Journal Article
%A G.D. Birkhoff
%T A Theorem on Matrices of Analytic Functions.
%J Mathematische Annalen
%D 1913
%P 122-133
%V 74
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1913__74_158623/
%F MAN_1913__74_158623