%0 Journal Article
%A E. Hairer
%T Constructive Characterization of A-Stable Approximations to exp(z) and Its  Connection with Algebraically Stable Runge-Kutta Methods.
%J Numerische Mathematik
%D 1982
%P 247-258
%V 39
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1982__39_132795/
%F NUMA_1982__39_132795