%0 Journal Article
%A László Lovász
%A Alexander Schrijver
%T Semidefinite functions on categories
%J The electronic journal of combinatorics
%D 2009
%V 16
%N 2
%U http://geodesic.mathdoc.fr/articles/10.37236/80/
%R 10.37236/80
%F 10_37236_80