%0 Journal Article
%A Marcus, Marvin
%A Moyls, Benjamin N.
%A Filippenko, Ivan
%T Normality and the Higher Numerical Range
%J Canadian journal of mathematics
%D 1978
%P 419-430
%V 30
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1978-036-6/
%R 10.4153/CJM-1978-036-6
%F 10_4153_CJM_1978_036_6