%0 Journal Article
%A Berman, Abraham
%A Krupnik, Mark
%T Spectrum preserving lower triangular completions -- the nonnegative nilpotent case
%J The electronic journal of linear algebra
%D 1997
%P 9-16
%V 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ELA_1997__2__a0/
%G en
%F ELA_1997__2__a0