%0 Journal Article
%A V. V. Prasolov
%T Sums of Squares of Polynomials
%J Matematičeskoe obrazovanie
%D 1999
%P 29-44
%N 1
%U http://geodesic.mathdoc.fr/item/MO_1999_1_a2/
%G ru
%F MO_1999_1_a2