%0 Journal Article
%A Li, Chi-Kwong
%A Zaharia, Alexandru
%T Nonconvexity of the Generalized Numerical Range Associated with the Principal Character
%J Canadian mathematical bulletin
%D 2000
%P 448-458
%V 43
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2000-053-3/
%R 10.4153/CMB-2000-053-3
%F 10_4153_CMB_2000_053_3