%0 Journal Article
%A Salinas, Norberto
%T On the η Function of Brown and Pearcy and the Numerical Function of an Operator
%J Canadian journal of mathematics
%D 1971
%P 565-578
%V 23
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-064-2/
%R 10.4153/CJM-1971-064-2
%F 10_4153_CJM_1971_064_2