%0 Journal Article
%A I. M. Prudnikov
%T Necessary and sufficient conditions for the representability of a positive homogeneous function of three variables in the form of a  difference of convex functions
%J Izvestiya. Mathematics 
%D 1993
%P 377-387
%V 41
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1993_41_2_a10/
%G en
%F IM2_1993_41_2_a10