%0 Journal Article %A Chen Xie %A Hui Zhao %A Zhixi Wang %T Separability of density matrices of graphs for multipartite systems %J The electronic journal of combinatorics %D 2013 %V 20 %N 4 %U http://geodesic.mathdoc.fr/articles/10.37236/3092/ %R 10.37236/3092 %F 10_37236_3092