%0 Journal Article
%A Marshall, M.
%T Approximating Positive Polynomials Using Sums of Squares
%J Canadian mathematical bulletin
%D 2003
%P 400-418
%V 46
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2003-041-9/
%R 10.4153/CMB-2003-041-9
%F 10_4153_CMB_2003_041_9