%0 Journal Article
%A G.W. Stewart
%T On a Companion Operator for Analytic Functions.
%J Numerische Mathematik
%D 1971
%P 26-43
%V 18
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1971__18_132090/
%F NUMA_1971__18_132090