%0 Journal Article %A Philippe Di Francesco %A Rinat Kedem %T Positivity of the \(T\)-system cluster algebra %J The electronic journal of combinatorics %D 2009 %V 16 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/229/ %R 10.37236/229 %F 10_37236_229