%0 Journal Article
%A Tam, Bit-Shun
%T A Simple proof of the Goldberg–Straus theorem on numerical radii
%J Glasgow mathematical journal
%D 1986
%P 139-141
%V 28
%N 2
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006455/
%R 10.1017/S0017089500006455
%F 10_1017_S0017089500006455