%0 Journal Article
%A Brand, Daniel
%T When is a Matrix Positive
%J Canadian mathematical bulletin
%D 1974
%P 409-410
%V 17
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-076-1/
%R 10.4153/CMB-1974-076-1
%F 10_4153_CMB_1974_076_1