%0 Journal Article
%A Roland Freund
%T On Conjugate Gradient Type Methods and Polynomial Preconditioners for a Class of Complex Non-Hermitian Matrices.
%J Numerische Mathematik
%D 1990
%P 285-312
%V 57
%N 6-7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1990__57_6-7_133450/
%F NUMA_1990__57_6-7_133450