%0 Journal Article
%A Bebiano, Natália
%T Some variations on the concept of the c-numerical range
%J Portugaliae mathematica
%D 1985
%P 189-200
%V 43
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1985__43_1_114502/
%G en
%F PORMA_1985__43_1_114502