%0 Journal Article
%A J.E. OSBORN
%T A Note on a Perturbation Theorem for the Matrix Eigenvalue Problem.
%J Numerische Mathematik
%D 1969
%P 152-153
%V 13
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1969__13_131906/
%F NUMA_1969__13_131906