%0 Journal Article
%A Li, Chi-Kwong
%A Sourour, Ahmed Ramzi
%T Linear Operators on Matrix Algebras that Preserve the Numerical Range, Numerical Radius or the States
%J Canadian journal of mathematics
%D 2004
%P 134-167
%V 56
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2004-007-4/
%R 10.4153/CJM-2004-007-4
%F 10_4153_CJM_2004_007_4